I just ran my LRP Comp sphere w. Orion 3200 pack last night and I got nearly 20 minutes of flat out run time with a Novak 13.5 brushless. I'm thinking this is a pretty good combo. I went with the sphere comp because the novak esc's didn't have a lipo cutoff. Apparently they are just releasing a new GTB that has lipo cutoff, so you might want to look into that.