Uhhh, why in the hell would you want to come heavy footed on the front or rear foot for a Krypt?? A krypt (when thrown right) is a normal railey laid out and then at the last minute you "pull the rope" to the opposite hip to land switch.
Dave, if you want to learn the right way, read up about them. I'm sure you will realize Ryan and myself are fairly accurate.
By the way, back foot heavy on any railey will throw you into a star gaze. Maybe you have bad habits? But if they work, then great!
Alex, show us some video bud