I've had ray do my collari a few years back. He does excellent work. To me, I'd have it repinched depending on how the motor tunes. If it's starting to show signs of losing compression, then that's when I'd send it in. While you have the motor apart, before you send it in, it might be a good time to check the crank pin and rod. As far as getting the sleeve pinched more than once, talk to ray and see what he says. I'd say you could repinch the motor more than once, but I'm no profesional.