I am looking at putting one of these together. I currently have an ultra stick 40. The plane would greatly benefit from having a longer rudder and having the horizontal stab moved up higher. Look at the dog house extreme(which is what many of the professionals use, chip hyde etc.). Or look at the Jerry Smith Spoiler
www.azarr.com/kits.htm . These are both basically Sticks with the tail modified to get rid of the pitch and roll coupling. I have been around sticks with the rudder lowered 1 1/4" and that helped, but I think that the tail mounted even higher would be better. I am in the process of doing this to a 1.20 size stick and putting a ZDZ 40 on it.
Lane