Say you're fanning conventionally in your left hand:
1 you have to lock that freaking left thumb DOWN on the deck's base so it doesn't slide around.
2 make sure your deck is in the correct starting position and perfectly square
3 with your right hand, reach for your keyboard and type in
www.flourishman.com and order his encyclopedia
4 practice it for months
5 successfully pressure fan!
also, make sure when you're learning this that you have really good condition cards, if they're splitting at the same point every time, take that card out. theres tons of other tips around too, I would say "do a search" but THIS forum is still in it's infancy, go to
www.decknique.net and FattyWarbucks did a pretty good post on the subject.