In my experience the weakest spot on these is the single trigger; hope yours doesn't have one....
Fusil, what in your experience, is the first sign of improperly hardened parts? It'd be nice to have a clue before the thing breaks in the middle of a hunt (or worse, doubles....).
Second your advice on 3" 20s, partly because they aren't really a very efficient load anyway. I shoot 'em only in pumps that can handle steel, and then only when I can't shoot lead. Magnum motto" "Sound and fury, signifying nothing" (except higher cost, more wear on gun, and shooter). There's a place for magnums--duck blind!
