Mkirsch,

Thanks for the feedback. I think I'm starting to get a handle on this. The 2 hours I spent out back yesterday just experimenting - lots of vrooom, vrooming, really started to educate my ear. The neighbors have been a bit unfriendly today though. Oh well, in the name of modelling...

I think the "cheesy movie death scene" cough should be entered into all future engine manuals. Perfect

Balin