As with most techniques, there are lots of variables that play into the ultimate result. But for what it’s worth, here is my
I shoot future at about 10-15 psi and from 1-3 inches. Most of the time, you get orange peel because the future dries up too much before it gets to the surface of the model and it doesn’t get a chance to flow and level-out.
Good luck and as always, experiment to see what gets you to the results you like.
BTW – I had the same problem and got some good help from the guys here:
http://www.finescale.com/fsm/community/forum/topic.asp?TOPIC_ID=12591