Hi Guy's, Wondering if 12" of setback is too much for my 521VS? Its a Detwiller Hydraulic. I think I saw where I can buy shorter angle mounts to shorten the setback to 8 0r 10". I also have a new 10" Slidemaster manual. If I use the Slidemaster, what is the ideal propshaft height in relation to the pad? Thanks for any input!