Excellent bit of info. As shown, positive Ackerman is good. That slack in the line not being pulled has absolutely no bad effects on response and does not induce flutter as some have predicted. As one who has been using pull pull on all sizes of models for the last 20 years and on many models I am convinced it is the most trouble free and reliable way to control elevator and rudder control. I've also tried it on ailerons but did have some problems when the wing deflection (spar bending or deflecting under G loads) caused excessive changes in line tension if trying to use a single servo (long lines) for aileron control.