Is your mark at the top or bottom of the cylinder? I would be more tempted to run it at the bottom.
Im probably running worse now in my engine. I have a .030 over now, with a gouge in the cylinder, about half way down. I know it needs boring, and i have .060 ross for it, but i just wanted it running so i slapped it together. Compession is down a bit in that cylinder.... but it still runs elevens.
If its not any worse that you describe, and its not at the top of the cylinder, I'd be tempted to fly it, rather than sleeve a hole, or buy pistons and bore it 060. But then.... I'm lazy.
