Dave can you do the dubbya dot veeaay in longhand for us foreigners? otherwise we won't know what state you are in
Have you used roto tanks before? i have a 14oz one yet to try it.I assume you mean the backup battery in your dx7 i used to fly one but have a jr 9503 now,better centre feel on the sticks.I need a new battery for that and they seem hard to come by.