RE: Capiche 50
Nice one eddy. good speeling too!
Sounds like you need to adjust your rudder expo/throw/rate
IMO leave the mixing out, waste of time. i tried it for a while, thought hey this was good. then one day the capiche flew really much better, because i had inadvertently flicked a switch which turned the mixing off.
If you are dead set on putting some mixing in though i would only even contemplate starting once youve got your side thrust and general setup perfect.
Otherwise if youve got rudder mixed with ails, when you keep re-trimming the rudder for straight vertical lines it does silly things with the ailerons requiring you to re-trim those, which if offset can make it flick in other manuvers.