Hey Lance,
I'm not out to steal any secrets but I'm very curious about the pinching process. I've sent you a PM before on resizing a B5 my buddy was gonna loan me but it kinda fell thru... I'm just curious as to how these sleeves could be pinched without crinkling the metal. Again, it's not like I would do it for myself but wanted to know about it, just to know really... Send me a PM if you prefer, or don't respond if it is some sort of secret, I'm just curious about it as I'm mesmerized on how these small 2 strokes operate at such extreme RPM's and I'm trying to learn about them. Just to learn really. I feel the more I understand them the better tuner I will be. We need some good tuners in my circle of friends so I'm trying to learn.
Thanks,
Rich