Biff, i'm not sure it has that much down thrust on the motor. i would think 6* would be pretty noticable. when you built yours, did the motor look like it was pointing down pretty good? i'll have to look at mine again, but, it doesn't look like much, if anything if i remember correctly. maybe that's a little of the problem. if i don't have any down thrust at all,... that would keep the motor from "pulling down" the airplane as it's flying??? i know i have to find my radio book, but is it possible to add elevator mixing in with the throttle, instead of playing with the trim switches all the time? would this be a bad idea, and should i just fly it at a "reasonable" speed as intended? it's not flying squirley or anything, i apparently have a screamer for a motor, usually a 10x6(thinking about an 11x6)prop, and running on 10%. i'm at half throttle probably 90% of the time, unless taking off and landing and up-lines. i'm sitting right around 4.25-4.5 lbs flying weight. what's yours weighing in at? maybe i'll just get the tiger 2 and throw that motor combo on there and see if she'll take it.</p>