RE: CD ScaleDesigns Albatros CI build
Bob all cylinders wear in an oval pattern due to the awful centrifugal forces involved in throwing an offset crank throw with an iron conrod bolted to it while shoving and tugging on the piston, which accelerates and decelerates at incredible rates during the engine cycle. Heres a picture of a bore guage used to check cylinder taper and out of round, a basic check before overhauling any engine. Sorry if it looks well used.
Doc