Reducing fall damage when falling at lower speeds

[MoJo JoJo]

I came across the tutorial on how to add in the force fall power and I got it to work fine in MP and SP. The problem is in SP, velocity doesn't affect fall damage so even if you're falling down slower (by using force fall) you still take as much damage as you would if you were falling at full speed (not in MP though), and you also take no more damage if velocity is higher than normal (again, not like this in MP). I tried JK2:E Redemption and noticed that fall damage was actually affected by velocity rates- much like in MP. How was/is this done?

Thanks in advanced for answers.

 

Edit: Does anybodee know?