Bread,

Thanks for that, a hotter plug usually helps iron out an idle, But to be honest mine is pretty good using the No.6 . I may try a No.5 just to see how it likes it. But I'm using Gen2 30% and the std. shimming so currently things are good as is.

If you guys are using the OS simply because of cost I'll happily continue with Ninja'

Cheers for the reply

Rod