You take a grip here, maybe climb out, take a grip there, wait for everyone to get just as contorted as you, and then you go.
Exits play an important part in relative work jumps.
A smooth exit may only take a second, but a funneled exit will cost you 10 seconds or more. Good exits need to be practiced on the ground. They require much more emphasis than the rest of the jump. For every 20 minutes of dirt diving, you may spend 10 minutes on the dive and 10 on the exit, even though the dive is 70 seconds and the exit is only 1 second long. Exit grips depend on the formation, aircraft and jumpers.