Well-- I took apart the carbs again today for the 436th time. Nothing to tell. The slides are/were just fine. There is no galling or spalling between the pistons and bores. The needles are fine, the baffles are new. The sync is near perfect. Checked with electronic and analog gages.
Also eliminated the ACS switch for toggles and replaced the new spark plugs with new-new spark plugs.
I am totally at my wits end, here. Completely pissed. I'm completely sick of just blindly throwing money at this motor hoping to fix the issue.
