i've got a question for you g . What type of motor where you running ? gas or glow ? if gas what type of ignition ?
if electronic how was your range with motor running? if you can see major diff between motor on and off you can be pretty sure that there is alot rf noise comming from the ignition . this could be the cause of some irratic problems.
I to have been left wondering after a crash and that is a pretty desperate feeling. the only cure i have found is to test,test,test,... and if you have an old stick laying around test your radio gear in that plane before you put it in you imac airplane. keep the faith .

tony fandino

the imac adventures of tony and gerry

http://tonyandgerry.com