Neighbors saw. Loaned it out, it came home with a galled piston and black deathed cylinder. Indications are he won't spend the money to repair it. Might end up mine. While I am automotive engine fluent, outside of my own, I do not work on chainsaws so don't know the ropes regarding what is and isn't common practice. Or what the OEM and aftermarket parts situation is. Saw in question is a 12mm 044 w/non-angled finned head w/o compression release. Cylinder wall appears to be nickel silicone coated. Damage to the cylinder isn't terminal - if it is possible to hone it oversize to fit an larger diameter piston. Is this an option? Is there someone (preferably not Perfect Bore) that can diamond hone a hard coated, blind hole cylinder straight and round? What are other options?