I have to disagree with you on one thing. Both Roleof and Stefan have posted a lot of very good and useful information on these forums. If you don't agree with what they say that's fine but that doesn't mean they haven't been helpful to many people. In fact, they are being helpful to you if you would put aside your grievance and listen. Especially the link they posted to the Gordon Jennings stuff. It's the best info on two stroke tuning on earth.