To work on your putting stroke as more of a pendulum, set up three tees — one at the ball, one to represent your backstroke and one to represent your follow-through, ensuring that your backstroke is slightly longer than your follow-through.
The goal is to hit three balls as close to exactly the same distance as possible. How you can assess your putts allows you to understand how well you’re letting gravity do its job; if you’re seeing a wider dispersion of distances, you know you’re getting too involved in the stroke.