Hello,
Started using the Stack recently and I just wanted also to share my progress.
During my fitting in 2022 my swing speed was in average at 92mph, and last summer I measured my top speed at 94mph.
Since then, I started a big technical work with my driver (I am now more precise with much more regularity), but my swing speed went much slower... I think I should be playing somewhere between 85 and 90mph. That's also the reason why I started using the stack.
After 5 sessions, my espeed increased a lot, I am really happy about it!
(Maybe also important to say, I am a women)
Thing is, I went to the driving range to try the priming speed with my driver, and my air shot with driver was 102mph, but with the ball only 89mph
Did somenone already experience that? Ok, it was freezing cold 25°F, but I am still a bit disapointed.