Ground Control is another option for plates that won't add to ride height and will increase compression stroke.
I got mine in the member classifieds here and love them: they have a serviceable radial bearing, hold settings well, and have been quiet and rattle-free. The main bearings still move smoothly and have no play, after approximately five years of use between the original owner and myself.
https://groundcontrolstore.com/colle...russ-bar-shown
http://www.ft86club.com/forums/showthread.php?t=23256