Thanks guys, Im flying the TDL Extra 300 / Saito 100 16x3w. Im currently at work so i cant check the throw or how closely they are to moving in unison. They are, however, bothe connected to the same servo, but I understand what you mean about one being a little ahead of the other. I think what Flyfalcons mentioned is whats happening, its stalling before it transits thru to ultra high AOA.

Thanks for your suggestions.
Duc

which livery is your Canadair painted in?