I don't think there should be a problem with having more than one gun in the blind. But I am not certain. Personally I think it would be pain, but if you think it will work for you, then go for it. I don't ever get a chance at a mixed bag of ducks and geese, that is why I wouldn't be worring about it. But if you are in a pit blind up in the rice country, then it could be a benifit I guess.
.....you've got to ask yourself a question: 'Do I feel lucky?' Well, do ya, punk?
Die' en ain't much of a livin' son.