RE: Hangar 9 Twist 3D
Dean, that snap is as predictable as anything the Twist does. The problem, and please don't forget, are in those moments of angst, when the bird is coming down from something you tried to do that didn't work--or DID work and you forgot about altitude, mesmerized watching it. You yank in desperation at the elevator to get her up and BLAM! she snaps right--then down--faster than you know. I've had two pretty good crashes doing exactly that--in the snow.
I know what you mean about the flexibility of the elevator. I FIRST thought maybe the control wire was bending--hence the carbon fiber idea. I suspect the reason the U Can Dos have TWO servos, each driving a separate side of the elevator, was designed to prevent that snap problem. I've been thinking of a dual drive system that goes THROUGH the fuse to drive both elevators with the same servo.
OR... you simply educate your thumbs. I love to do a rectangle with all my birds: 10 feet altitude into the wind, hard up (but not TOO hard) on the ele to vertical, then hard up to put her on her back for a bit, then hard down toward the ground, then hard up to put her, at 10 feet, straight and level, right over the field again. Impressive, fast or slow, keeping the lines straight. The Twist does it, but the Katana does it better--and no propensity to snap.
Worst thing, with the Twist, is all is going so fine, confidence up, Twist performing at peak, then you don't. That moment comes at the most unpredictable times.
J.