got to go with the Saito 100
PlagueWielder,
I first put a Saito 72 on it and it had "OK" power(would hover and pull out slow). I read too much about the 100 and just changed to it and have 6-8 flights on it. WOW!!!!!!!!!!!!!!!!!!!! There is no other combo as far as I'm concerned! By the way, it weighs less than the 91. I'm at 6 lbs even and have tons of pullout power.
It still flies light - elevators upright and inverted the same, hovers and harriers as good and no bad tendacies with 3.5 more ounces than the 72.
Most fun I've had with plane since I started 2 years ago!