Well said. It can be hard at times to transition from heel-toe running to proper sprinting form, but when you do, you will see great improvement right off the bat. At least I did. Just practice staying on your toes. Here's a suggestion:
Do EVERYTHING on your toes. Try doing your warm up jog on your toes (doesn't necessarily have to be fast). Do your drills on your toes and then try doing your workout on your toes.
I call it overcorrecting. If this is such a serious problem (you run heel-toe EVERYTIME) then this might help. I did something like this and after a couple of weeks I was able to jog the warm up normally and do my drills on my toes, yet still never run heel-toe again. It might not be the best method of correction, but it works.