Interestingly enough, I've had better luck with good ol' Walmart bags o' plenty... Up until I had tried to convince my new partner in crime of such insight, and lo and behold, the bag wouldn't go after three tries and on the first try with a 2" mouse, it came through slick as a whistle. Drat!
Fate always has a tendency to make be look like a fool in front of him... even with my darnedest efforts to do otherwise...