OK, I get the torque/twist bit. I am interested in the scope thoughts though. It makes sense to me that if you shoot a 4 shot group with a scope, 2 lefts, 2 rights at, say 100 yds and get a 2" group why not sight the scope into the middle of the group ? Even the guy at Hollands said "sight the scope in for the left barrel only" but I can't see why. When the thing arrives (the .375) I am going to mess around a lot and try and sort the things out in my own head. In the meantime when the .470 O/U gets here (in 3 weeks or so I hope) I will try a couple off the sled with no lead (but the sled does add 20lbs of weight on its own) and report back. thx to everyone for the input, best, Mike