So many choices, and hard to decide between them. Mossberg 835 mag. ported - ~$300 Remington 870 super mag. - ~$350 Benelli Nova - ~$400 These are what I'm considering. I've shot a Nova and the 870 before (old 870 with a loooong barrel). Only thing I don't like about the Nova is the grip. Has this funky ribbed grip that chafes bad when spending a long day shooting clays. Big things I'm looking for: 3.5" capability, slug barrel options, smooth actions Comments, suggestions?