Golf Lessons in Scottsdale, AZ: What You Should Expect From a Data-Driven Instructor
Golf Lessons in Scottsdale, AZ: What You Should Expect From a Data-Driven Instructor
If you are looking for golf lessons in Scottsdale, Arizona, you have a lot of options. McCormick Ranch, TPC Scottsdale, Troon North, Gainey Ranch - there are qualified instructors at courses across the city. The question is not whether you can find a lesson. The question is whether you can find one that will actually make you better in a way that sticks.
Most golfers in Arizona have taken lessons. Most of them have taken multiple lessons from multiple instructors. And most of them are still struggling with the same miss they were struggling with three years ago, because the instruction they received gave them feels without giving them understanding. A feel fades. Understanding stays.
In this post I am going to walk you through exactly what a data-driven lesson with me looks like at McCormick Ranch Golf Club in Scottsdale - what happens before you hit a ball, what happens during the lesson, what you walk away with, and why that structure produces faster, more lasting improvement than a typical lesson.
Before You Hit a Ball: The Diagnostic Baseline
The first thing I do in any new student session is establish a baseline. Before I say a word about your swing, I want to know what your numbers are. I set up TrackMan 4 behind the hitting position and ask you to hit a series of shots with the club you care most about -usually a 7-iron or a driver, depending on what you are most frustrated with. I am not watching your mechanics yet. I am reading the data.
In those first 8 to 10 swings I collect: attack angle, dynamic loft, club path, face angle, spin loft, low point location, smash factor, ball speed, and carry distance. These numbers give me a precise picture of what the club is doing at impact. They do not tell me why yet - that comes next. But they tell me the result with precision, which means I know exactly what the target is before I start looking for the cause.
This baseline also gives you something most golfers have never had: a measurement of where you actually are. Not where you feel like you are, not where your playing partners say you are - where the data says you are. Everything that changes from that baseline forward is measurable. That is accountability for me and progress confirmation for you.
The Diagnosis: One Primary Cause
Once I have the baseline data, I overlay it with two additional inputs: HackMotion wrist sensor data and 3D video. The HackMotion sensor clips onto the lead glove and records lead and trail wrist angles through the entire swing in real time. Combined with TrackMan, I can now see both what the club is doing at impact and what the wrists are doing to produce it.
The 3D video is synchronized with the TrackMan data so I can locate the exact moment in the swing where the breakdown occurs. If your dynamic loft is 24 degrees when it should be 17, the video shows me precisely where the shaft began leaning away from the target - and the HackMotion data tells me whether that was caused by a wrist extension, a pressure shift failure, or a path issue.
From this combination of inputs, I form a single diagnosis: one primary cause that is producing the miss. Not five things that might be contributing. One thing that, if changed, will produce an immediate and measurable improvement in your ball striking. The rest of the list - if there is a rest of the list - we address in the correct sequence after the first thing is stable.
This diagnostic process typically takes 15 to 20 minutes. Most students are surprised by how quickly the problem becomes clear when the right data is being measured. Years of confusion resolved in 20 minutes. That is not because I am exceptional - it is because the data tells the truth and the truth is always the fastest path to the fix.
The Fix: Constraint-Led, Not Feel-Based
Once the diagnosis is confirmed, I give you one drill. Not four. Not a list. One focused, constraint-based drill that makes the correct movement the only available movement. I do not give you a swing thought. Swing thoughts fail under pressure because pressure changes your awareness of your own body. A physical constraint does not fail under pressure because it is not a thought - it is a condition.
For example: if your diagnosis is a pressure shift failure - weight staying on the trail foot through impact - I give you the Step-Through Drill. You literally step through toward the target as you swing. You cannot stay on the trail foot and step through simultaneously. The constraint makes the correct movement mandatory.
If your diagnosis is a lead wrist extension pattern - a flip - I use the HackMotion audio feedback mode, which beeps when your lead wrist reaches the correct flexion angle and stays silent when it extends. You hear the correct position before you feel it, and that audio feedback accelerates the learning faster than any description of what you should feel.
Every drill produces a confirmation on TrackMan within the first 5 to 8 balls. Your attack angle moves. Your dynamic loft drops. Your ball speed goes up. You see the number change in real time. That is how you know the right thing is being fixed.
What You Walk Away With
At the end of a session at McCormick Ranch, you walk away with four specific things.
Your baseline data - the numbers from the start of the session, which become your personal benchmark for every future session and every practice session in between.
A clear diagnosis - one sentence that describes what your swing is doing mechanically and why it is producing the miss you came in with. Not a vague feeling. A precise mechanical description.
One drill - with a clear physical cue or constraint, a specific feel target, and a TrackMan parameter to monitor so you know when it is working during practice.
An understanding of your pattern - which of the four release patterns you are using, what your matchups are, and why your swing works the way it does. Once you understand your pattern, you can self-correct. That is the goal.
You do not leave with a recording of the lesson and a vague instruction to 'work on your turn.' You leave knowing exactly what to do tomorrow on the range and exactly how to confirm whether it is working.
Online Lessons: The Same System, Anywhere in the World
Not everyone can get to McCormick Ranch in Scottsdale. I work with students worldwide through my online coaching program, which delivers the same diagnostic precision as an in-person session.
For online students, the process begins with you submitting swing video from a face-on and down-the-line angle, along with your launch monitor data if you have access to one -TrackMan, Foresight, Mevo, FlightScope all work. If you do not have launch monitor access, video alone is sufficient to identify the primary mechanical issue. I have diagnosed and fixed early extension, over-the-top paths, flip patterns, and grip-release mismatches from video alone with students who never set foot in Arizona.
The diagnosis, drill, and follow-up process are identical. The feedback loop is slightly slower because we are not in the same room, but the precision of the fix is the same. Students receive a written report with their diagnosis, their drill with video reference, and a follow-up review scheduled after two to three weeks of practice.
Book a lesson or learn more at EJSGolf.com
My full drills guide is at EJSGolf.com/my-drills
Read more instructions at EJSGolf.com/blog
"I drove from Phoenix to Scottsdale specifically to work with Erik after reading his blog. The session was exactly what he described - baseline data first, one diagnosis, one drill. I walked out knowing more about my swing than I had learned in 15 years of playing."
— Dan F. | Phoenix, AZ
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Erik Schjolberg is a PGA Professional and founder of EJS Golf, based at McCormick Ranch Golf Club in Scottsdale, Arizona. He has 25+ years of experience coaching golfers from beginners to PGA Tour professionals using TrackMan 4, HackMotion wrist sensors, force plates, and 3D video analysis. His proprietary teaching system - The Science of Better Golf - is built around four release patterns and centers on low point control, forward shaft lean, and ground reaction forces as the measurable determinants of ball striking quality. His students demonstrate measurable improvement in attack angle, dynamic loft, and low point location in the first session. He does not participate in Golf Digest or Golf magazine ranking polls. His students’ data is his credential.
