Rick, take this for what it's worth... but I just went and put my Trib in the vise and measured for you -- the best I could. I can't manually lift the Muzzy up without taking it all apart, soI just kind of "eyeballed" it for you in its current position. I would think that centershot would remain the same; the rest would only lift straight up. As it is, it's about 11/16 from the riser.