I agree Dave. I have run a 180 grit hone through many a cylinder ranging from lawn mower engines, motorcycles, Hondas and marine V8s but I'm still nervous about doing it with model engines so I use a finer grit, sometimes 280. There is also risk with a fine grit of not getting the glaze off all over and that creates problems but I still use a fine grit anyway and just spend more time.

Denis