Thanks, miami. I will probably pick up a sullivan flex tank (10 oz) sooner or later and put in it. The dubro tank is just too bulky. I think the flex tank will fit in there nicely. And, you can mold them as well! Yes, the 100 is looking for a new home. It will more than likely go on a 4 star 60 this coming spring. The .56 takes up quite a bit of space in there, I can't imagine trying to put that 100 in it. Wasn't going to happen. Well, it could have, but would have been a tight fit.