Jack,
To answer your question, when hunting very late or at the end of the season, after all the leaves and brush have cleared and the grouse flush farther out. Nice to have a choice at that time of the year.
Snowshoe hunting in deep snow puts an unusual twist on it-sometimes you will move a grouse from a snow burrow in the morning. Truth be told, this is my absolute favorite kind of grouse hunting, and while I could make the same argument (double triggers over a single) I usually choose a very light Italian folding single shot, 12 gauge 30" full choke gun, as it doubles as a balance pole, and one shot is all you will ever get at a 'ruff as it flies up from between the tips of snowshoes.
The Tobin is very much an antique. But, very effective with the proper loads. I look at anything marked Super X as a quaint reminder of a time when Americans could be sold something that was bigger, not better. Of course, I use a Darne 12 gauge as well, which will happily digest any round that can be stuffed in it's chambers, even if I can't. Darnes don't have a reputation for popping ribs like a 21 does, either, and will be lighter, anyway. Mine is the same weight as my Tobin 16, even with it's Darne sling installed.
Don't throw that 21 in the trash, Homer-sell it to Tony, and use the proceeds to get something with double triggers and a straight stock that doesn't weigh so much. Hate to see a guy out the dough those things cost...
Best,
Ted
