I've used one for about 6 months now, works great. Hung it vertical on Spuhr mount. Mounted it 1st with just the Spuhr A-0003 Pic rail, it was touching my Deviant Action causing it to list a little and put it in a bind, didn't feel that was right. So, got a Spuhr A-0001 spacer 0.16", Now have...