I think i read that post sometime ago. I think that he may have been directing the cam sync article more towards the hybrid or cam and 1/2 bows. I'm not sure if dually's have a syncronization problem but more timing problems and cam and 1/2's have more sync problems than timing. Maybe that is the difference between the 2. If I understand cam and 1/2's right there whole purpose was to eliminate timing issues by linking the cams but maybe they had a new problem with timing so they called it syncronization instead. I guess i'm not much help. Sorry!