Cant go wrong with a Twist or the UCD 60. Both fly excellent. I ran a .61 in my .40 size Twist. POWER!. Profiles are great too. I have a Morris TopCat with a OS 55. Excellent flyer and durable. The elevator got stuck in the down position while doing tumbles just today when I was flying it for the first time. I landed it doing tumbles, inverted. No damage. It was cool.