I have a stock biped character in 3D studio max which has a jump animation.

The problem I have with the jump animation is that there is actual y offset happening inside it which makes it awkward to play while the character is jumping since it's not only jumping in the game world but the jump animation is adding its own height offset.

I'm tryuing to remove the jump animations height offset, so far I've found the root node and deleted all its key frames which has helped a bit.

The problem I'm having now is that the character still has some height offset and if I try to lower it it has a fake 'ground' that isn't at 0 and the limbs sort of bend on the imaginary floor, si there a way to remove this restriction just for the jump animation?

Here's what I mean: http://i.imgur.com/qoWIR.png

Any idea for a fix? I'm using Unity 3D if that opens any other possibilities...