This gets argued as though it is a choice. It is not. They do two different jobs, and using one without the other is why golfers plateau.
What a lesson is genuinely good at
Diagnosis. A competent coach watches you for ten minutes and tells you which of your five faults is causing the other four. That is genuinely hard to do for yourself, and it is worth paying for. Video, launch data and a trained eye will find in one session what you might never find alone.
What a lesson is bad at
The next six days. You leave with a feel, and by Wednesday it is gone, because a feel needs reinforcing and your coach is not in your garage. Most of the value of a lesson leaks away in the week after it.
What a training aid is good at
Repetition against a constraint, cheaply, at home, for as long as you like. An aid does not diagnose anything. It holds one thing steady while your body learns it. That is exactly the gap a lesson leaves.
The rough economics
A single lesson in most places costs more than a training aid, and buys you one hour. An aid costs once and is available every evening for a year. But an aid pointed at the wrong fault is money burnt, which is precisely what a lesson prevents.
The sensible order
- One lesson to find the actual cause, not the symptom.
- An aid that targets that specific cause.
- Ten minutes a day for three weeks.
- A follow-up lesson to check the change and find the next one.
If you cannot afford both, film your swing first and be honest about the fault before buying anything. Guessing is the expensive option.
