This is all very well but you seem to be missing the most basic point here. When aiming at the basics in engine performance then green marker around the edges is yer only man. Joe McC Russell McMahon wrote.... Your utterly wasting your time with all this advanced technology if you don't establish a firm foundation. It's worth noting that when aiming at the basics in engine performance then much of the lessons learned in the hifi world are directly transferable. I could say much more but that establishes the basics well enough. RM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist