Still trying it out. Makes my bike look way cool. Putting grease in the fork seems really easy and maintenace looks to be very low. Stiff, light, great tracking. Break-in takes a while.
Bushings are pretty crude.
Judy xc, Original Judy, Manitou series. A bit on the stiff side initially, handles any terrain with great tracking. Motion is less abrupt in chop, and handles whoops like they aren't there. No flop of any kind in tech. terrain. The endo feeling that some riders complain about in the proflex section is probably from a poorly fitting bike.