Well, you could try a work around by creating a short
loop situation.
Setpos the unit to the height limit and do it e.g. 3 times.
When the unit is falling into it's 4th attemp let it make
the ultimate fall.
:note - don't forget to check wether the player has already
pulled the chute trigger within one of the first 3 falls, as
it would look stupid setposing him up to the sky when he's
already in the chute.
~S~ CD