I got to spend some time recently with relatively prominent coach known for his field events prowess and he corrected me on a lot of acceleration mechanics and I immediately could tell the difference in feel and power applied. Don’t know if it immediately corresponded to faster times BUT the same mechanics focus did correspond to further jumps when we went over to the jump pit. Nothing esoteric or weird just common sense, simple cues and ideas focusing on one thing at a time. I also noticed a lot of the dings and tightness I normally feel in every workout with almost nonexistent when I was executing at what he felt was close to ideal mechanics.
Good luck Sat.