Aside from the SBE/SBE2 (and even including those), I've seen a number of guns that work fine in the goose blind fail out pheasant hunting - and vice versa. In the goose blind, I can't say that I've been terribly impressed with the overall effectiveness of the 3-1/2" rounds, vice the traditional 3", especially factoring in the extra expense and what I'm hearing is "less than reliable" availability at other than large retailers.