I now have the Enya No3 plug in the Heli, had 12 or 14 flights today and the
plug is still going strong much better than the OS No8.
The engine seemed to start easier and run smoother especial idle.
I have also got some OS A3 plugs but have not tried them as yet, will keep
the Enya plug in untill it dies.
Thanks for the tip on what plug to use :-)