Full length all the way for me.....
This is from another thread I posted:
I've owned both 3/4 and full length UQ's. I actually prefer the full length (I have a StormCrow Incubator now) because I don't always sleep in a conventional straight line. Sometimes I'm fetal, sometimes I even like to fall asleep with my legs indian-style. Using the footpad would drive me crazy when it (or I) shifted. Another thing I disliked with the partial UQ's was the feeling of the shock cord under my thighs/knees - If it's really cold, you'll need to cinch these up to retain heat.
It's a personal preference really... I don't mind the weight penalty (it's pretty minimal) for an UQ that is absolutely bomber IMO. The Incubator is a pretty amazing piece of work really.