JT, I see that SLR with the dual holes. One a vent and the other for the adjustment screw, nice stuff indeed. I forget the name of the component, running around too much today, my mind is getting fuzzy, the pressure relief thingy. I want to buy that one but don't want to be too foolish and spend 89$ if I need to drill more holes. Would one set screw set into the divot and one set screw merely tightened a bit do it, or must I drill a second divot?