I'd rather not paraphrase - I think it's best to talk to him yourself but he made some strong points about sticking with an OEM flywheel (maybe it was just for my personal needs but it sounded like he was speaking from a general sense). I find comfort in listening to his advise considering not only his first hand experience on the matter but also because it's a hell of a lot cheaper to stick with the OEM flywheel. The SZ flywheel is a fine unit but just know that even though it is segmented, it's still not impervious to warpage.
