I've considered removing the regulator as well, but still don't feel comfortable non balance charging a Lipo pack, even if it's just 2s. It just seems like a bad idea.
I purchased a RadioLink CB86 charger for all my smaller Rx packs and it has made charge/discharge very easy for all the planes.

Another option, although heavier, would be to install Rx packs with built in balancer electronics (Booma and Duraflite sell these IIRC)...then it's simple and safe to charge in the plane.