Most golfers spend the off season working on whatever they can do in the garage. A better plan starts with last season's strokes gained numbers, then works out which of those problems you can actually fix without a golf course.
A weekend golfer shooting 92 is sure the driver is costing them the most. Twenty tracked rounds later, the numbers point somewhere else. This example follows one season of data from the first round logged to a two-stroke drop.
Five strokes in one season, broken down shot by shot. The interesting part is not that the scoring average fell. It is that almost none of it came from the two things this golfer was sure were the problem.
Most golfers remember their best rounds wrong. When you pull the shot data from your top five scores, the pattern that shows up is almost never the one you expected.
None of these five changes require a better swing. They are decisions you make before the shot, and together they are worth two to four strokes for most mid-handicappers.
Your scoring average can drop a shot and a half without you improving at all. A structured mid-season check separates the real progress from the noise.