Had an old grinder, emailed Rob asking if grinder scope could mount to tommy hogg base with five pin adapter and sure enough could. Had to special order but the wait was with it. Scope mounted with ease and works great.
between my wife and I we own 6 spot hog sights, all of them work well ,we like some models better then others, our least favorite is the fast Eddie the first year it came out. we like the tommie and the hog father, the fast Eddie is hard to dial up the yardage they trimmed to much of it , trying to cut weight