I had bought one of those "Gunsmith" Screwdriver sets years ago, but their drivers do not fit these screws well! Plus, Leupold has finally put a coat of thred seal on them ( a good thing) but they are hard to set up on the rear ring. I finally got it done, and had well buggered up both screws! After I had the scope set up well, I then replaced both with a couple spares I scrounged up and with fresh Loctite they went in better, and able t keep "un" buggered. Where can I get a flat screws driver (or bit) that will fit these Morphidytes properly? Thanks. BTW The Vortex 1.5x8 looks great on this new Mesa!