Hey fellas, I have an OEM 064 cylinder that's questionable for use. I thought i would gather up some information from some experienced builders if this could be used or not. The cylinder is in great condition except for the plating has come off just over the exhaust port hood. It measures about 1/8 th of an inch with missing plating. Question is would this be a No No? Or useable? Or could the exhaust roof be raised some to where this missing plating would be so minimal it wouldn't affect the rings and performance in anyway? In my opinion I wouldn't use it, but looking for more opinions from other builders that have gotten away with something like this or it turned out to be a bad idea. Thanks guys.