High School "Punching" off ground in toe touch

[lalalalaseattle]

Hey everyone! My toe touch is pretty consistently level, but i have developed a habit of "punching" off the ground that my coach says i need to fix- my prep is normal up to my tip toes, but on the swing down i allow myself to fall for a moment (feet hovering above ground while upper body drops) then use my legs to snap off the ground. When I do T jumps/ slow toe touches, i am able to not do it, but the second i speed my jumps up it happens again! any tips on how to stop/ get this out of muscle memory?? I know this is hard to visualize but thanks for any help!