Sheeeeesh Rob, I was getting a headache following this thread.
I had a similar problem with an Ultratec which inturn was a sync AND drawstop timing issue.
I had read on AT, on a couple different posts regarding how sensitive the binary system was regarding tying into the buss cable.
I was tempted to post it but since the binary's scare me, no pun intended, I chose not to.
I had a long learning curve working with the C&1/2's until I understood that the reference marks on the cams were only for "reference". Talk about old school....
I kind of miss the old days with the easy tune hatchet cams on the old HC's and Martins. Like Huffy bicycles...didn't look purty' but got ya' from point A to B.[8D]