I think that a 0.061-0.074 would be a good choice. At 1.1 pound with the heavy elecrtic motor and the lipo batterys. With a little work it should be easy to get it around 13 oz ready to fly. My Half Wit almost hovers at 14.8 oz. So I don't see 3 more onces needing to go from a 0.061 to a .15. Plus the extra weight of the .15 over the 0.061 would kill any type of glide it would have.

Dru.