I am with lance on this. The technique of every test is coached in such detail that you can shave .2 - .3 off a 40 in less than an hour. You cannot finnesse your way into a good vertical jump. You just need raw power. You dont creep the line, big step, stare at this point, keep your lean, dont pop up but step out, etc... to a good jump. I have seen hip dominant jumpers jump 36+ and quad dominant jump 36+. it is more about horsepower than anything.