If you do a search on this site for farley rest disassembly yoou will find this reply from Butch Lambert. It is the best post I have seen on the subject.
Butch Lambert
Registered User
Join DateFeb 2003LocationPoetry, Tex.Posts4,505
Joel Kendrick has modified several Farleys. The first thing to do is disassemble the rest top thoroughly and clean. Put teflon or UHMW tape on the front of the front sliding plate. The front sliding plate bears or rubs on the main rest housing. I like synthetic racing bicycle wheel bearing grease. Apply the grease to the front sliding plate. The older Farley's had 2 square .250 keys that worked between the 2 sliding plates. Replace the keys with 2 round .250 pins. Be sure to lube the pins. Replace the tension screws with the Shadetree Engineering screws. Lube the buttons with the above mentioned grease. You need to also lube the adjustable plate that bolts to the bottom of the res top that slides in the back sliding plate. I don't remove the boot but I do take the screws out and let it float. The easiest way to adjust the tension screws for me is to set a 10lbs. weight on the bag plate and vigorously operate the stick slowly tightening the tension screws. When the screws are tight enough to hold the 10lbs. weight it will then easily hold a 17lbs rifle. You need to shoot without having your fingers in contact with the handle.
Butch