Hey,
I've been flying nothing but Ultimates for the last 3 years, and they are all about the same. They will snap hard and fast, and stop instantly, if..........
It takes low rate elevator and rudder, and high rate aileron. Too much elevator and aileron will make a very "wallowy" snap with 30 degrees of heading change - not good for pattern work. If you have any trouble with soft completions, it is a problem with the servos not having enough power on the rudder and/or the ailerons to re-center the surfaces. Right now I have the AW 42% with JR 8411's all around, and they produce very clean snaps with instant stops. I did put four servos on the rudder, which is one more than AW recommends.
The up-line snaps will bleed off energy fast. There is a lot of wing area you are throwing into the wind. If you have to carry a long up line with snaps, you need lots of power (I mean LOTS OF POWER!), or learn to do the TOC style snap. (lead with elevator, but then take the elevator out for the rest of the snap.) If the plane slows during pattern maneuvers, you end up having to really fly it with all three controls until the speed comes back up. If you keep the speed up, it behaves nicely.
Bipes are not as easy to fly as the extras. If you want a challenge, they are great crowd pleasers. If you want easy, stick to the monowings.
Hope this helps..........CJ