I guess I just don't realize how lucky I was: I had a Great Planes AT-6 with mechanical retracts and a measly 600 mAH battery pack. I would fly it up to 6 times a day, with probably twice that many rectract cycles (I practiced touch and goes on the last flight or two of the day), and it never had a battery failure. I should have bought a Lotto ticket each and every day that I did that: I would have surely won by now with that kind of luck.

And then there is my DynaFlite Corsair with mechanical rotating retracts: pretty much the same story (except it had a 5 cell pack with 6 volt regulator).

Does any body out there have a Hobbico Accu-Cycle (or equivelent)? I like them so much that I have 4. They can tell me how much battery is left at the end of the day, which gives me a good indication of what my planes need (in mAH) for X amount of flights.

OK, I'll let it go for now. Enough on retracts and oversized battery packs.
Are you gonna use the stock, 2 1/2" wheels?