The reason i didnt go for PCM is because it costs more and goes immediately into failsafe if you get intereference. The IPD is supposed to filter it out and then apply the most recent control inputs if it gets any worse (cant remeber the specifics)
I tried about five range checks with the model at all attitudes but couldnt re-create the effect. I'm suprised because IPD is supposed to iron out clitches. I was told afterwards that numerous people at the kempton site lose their planes to interference even with PCM, so it may just be a fluke.
Will get the TX checked.................when you say flaky do you mean dirty?
I also heard about Welsh 3d's tx wires coming out due to too much 3d stick bashing (

) so will check them too!
PS NEW c140EX PAGE UP WITH BUILD PICCIES!
http://www.sueco.pwp.blueyonder.co.u...ite/c140ex.htm