On the prototype there was only a few minor niggles, no problems with binding or nose heavy on the ground, I fly of grass and the trials where done in January when the ground was quite wet. I used two elevator servos mounted in front of the tailplane and closed loop on the rudder, servo mounted in the fus. I changed the horns for the rudder as the ones supplied where not up to the job, the ones I used allowed me to cut them down thus preventing any fouling, it sounds like they took note of my recommendations and changed them. Did they change them to the standard grey framed ones? If so then you obviously can not reduce these in height. I have not seen the updated Twister, we will be getting them in about three weeks