It's closer to 15% if we control for dynamic loft, because the "pre-set drill" doesn't really let me hit anything longer than about a 6I and get the ball up in the air enough to control landing angle well enough, etc.
As I wrote, a good chunk of the distance that would be lost (beyond the 10%) is due to the "more than optimal" amount of lag or shaft lean.
I tend to lose focus riding in a cart. I do more chatting and less thinking about the last/next shot.
I also think I stay looser while walking, but that benefit may be cancelled out by feeling more fatigued towards the end of a round.
I'm not sure if any of that translates to a real difference in score.
Either way, I think is more enjoyable to walk. I wish more courses were walking-only.
Thanks - this is close to what I was looking for - about 10%. Given there are variables at play about 10% sounds reasonable.
On the tour you’ll easily see 10% differences in driver distances between players. Furyk averages 275 while Bubba is 312 - that’s over 10%. Distance is important, but other aspects are important too which Is how Furyk competes. Given the data I don’t think distance is the limiting factor of why we don’t see the JV swing on tour.