I'm missing the days when I knew shit about two strokes... things were pretty much easier and less time consuming. I didn't had the knowledge to go any further though, so I reckon that's a good thing in my book. I will do a write up on CCSpecialty porting tools real soon. Big cheers to Vaggelis(GR) aka 1/2 Racing that lend me some of his tools. A young guy that knows more about porting work than old-aged tuners here in Greece. Nsr250 crankcases in the background...