1) I only use the Ghea piston in the rear because using this ncreases the speed of the rebound, helping the rear stay more planted and ride bumps better. The front doesn't suffer from that so I don't use them. Tapered side always on the bottom ;-)
2) The petit setup is in the B44 setup thread:
http://www.oople.com/forums/showthre...626#post453626
Laters.....