I've got the Rhino Guide series, not the v-drive. I checked out the v-drive and thought about it but it seemed kind of loosy-goosy to me. Cabelas had one mounted on a display rack with a bunch of other sights and the v-drive seemed like it was about to fall apart. The guys working the bow area messed with it but couldn't figure out why it was jacked up but couldn't figure it out. It may have just been mounted sloppily or maybe had too many people adjusting it. Whatever it was it was enough to make me pass on it. The Guide series is the same sight housing and pins (.19) but probably more work adjusting. I adjust my sight and then leave it so I don't have much need for fast adjustments. I'm more comfortable knowing the sight is solid and not going to be moving around.