i appreciate your replies. i have balanced the plane out numerous times w/ numerous people looking at the balance and it is nowhere near nose-heavy. i will definitely check out the engine thrust-line like you suggested, dave. randy, if you could please let me know where you check your balance at (how far back from the leading edge of the wing), as well as what the incidence on your wing is compared to the stab, it would be appreciated. we put six incident meters on the wing and then in every combination--some one wing, some on stab-- and couldn't detect any twists.

thanks again,
roy