Quote Originally Posted by ikarma70 View Post
never really needed 1 on my 95,there isnt that much preload.
I agree also as you have to twist the end piece out which is tricky with some compressors that require the cylender to be restrained. Piece of cork on the flat of the hand, arm stright (holding the cylinder upright with transfer port resting on some card board on the ground) and press down with the stright arm and corked hand, then use the free hand to twist the cylinder. Not much pre load. I did my new .20 yesterday and managed to close it off with both hands only. The piece of cork helps grip the flat end when twisting.
ATB
Willie