I'm restoring a Comet Gull II (30" wingspan, former rubber power) that I electrified about eight years ago. _Then_ it had NiCads, and brushless motors were for folks with _money_. _Now_ it's getting LiPos, but I'm going to start lazy, and use the GWS brushed motor and CC pixie ESC that it came with.
It won't balance with the LiPo pack! It's gonna need LiPo + lead! Oh boy!
Dangit!