There is footage of Trey Hardee using this kind of work but it was very low intensity, probably akin to using “The Stick”. Definitely wasn’t looking to release anything or get deep.
Kyle, what have you been using for lower body strength workouts?
The 40 isn’t bad, all things considered. You aren’t that far off your all time best, right? The broad jump and the OHB are the ones that raise a red flag for me, is it possible that you are still guarding yourself when maximally extending the hip?