Anywhere except the factory. I can't shoot more than a dozen full house 3.5" duck loads through my 535 waterfowl without almost breaking a dang finger. Maybe I'm not holding on to the thing correctly, but my Benelli Nova never gave me any problems with the same loads.
Have you thought about camo dipping your factory stock set? BTW, I love the gun other than the finger issue. The factory somehow managed to squeeze 2 wooden dowel plugs in the tube, too. I thought that was funny.