gjeffers, You'll need to go to the larger mounts GP60-120 if you are mounting any engine larger than the Saito 82. You are correct, with the 100 in it you will truly have a BAD BOY!!!! If you put 30% in that baby she'll really sing. You may even do the inverted flat spin landing!?!?!?!?
Thanks,
Barry
PS: Went flying last night with my 60 size. I'm still trimming this one out but I really enjoyed it. Still like the way the 46 flys a little better. But I could hover and was doing some nice rolling circles. And the knife edge coupling stunt is like no other!!!!!