Mr Seahunt,
I'm not that finatical about band storage either. I leave them on the gun and expect to replace them after a season of shooting. New extra bands can be kept in a zip lock bag and they will be fine, as long as they are kept away from heat. Down here in FL it's worst case, but I still don't bother to ever strip my gun. The enemy is sunlight, ozone exposure, and even flourescent lights.
Another note... bands weaken even if they are not rotten yet, so if you're not getting the pop you want get some new ones. Most stock Billers come with 9/16 diameter bands, and I would recommend getting 5/8 instead. Also move to the next shorter size if you have the arms for them... ie 22" x 5/8" on a 54" gun will really make it rip!
Cocking a hip loading gun is much easier if you know how. Place the butt on your leg at the point where it meets your hip. Reach up and grab the band with your palms up, at the wish bone rings. (Wear gloves!) As you pull the band back... you must also move the muzzle of the gun down, about 90 degrees, or from almost straight up, to almost the floor, in a sweeping motion. If you leave the muzzle up... it will be real hard to cock! You can practice this without actually latching the band. BTW the inside band goes in the front notch, and the outside band goes past it to the last notch. Or if there are three notches, you can choose which 2. Most Biller guns do best with just 2 good bands, not 3.
Chad