When I started doing squats, I happened to be riding up Mudgeley Hill in Wedmore a fair bit.
Beforehand, my PR on the strava segment for the short, steep start of the climb was 57s. After, I improved to 48s without really trying. Having noticed the improvement, next time I tried harder, but messed up because I'd not realised where the segment end was (it was longer than I'd thought). I did 49s. Then 36s. Then 37s, and finally 34s.
48s would have been around 550th out of 1500-odd.
34s is 18th.
Who knows whether the squats helped, but my feeling is they've improved my ability for these short bursts of power to get up short, sharp climbs on fixed. They've also made me heavier (as has the other weight training) so it may have reduced my ability on longer climbs.
EDIT: should be up to 17th - KOM was clearly in a car.