PB2 now drives the switch on master port 1 and PB6 the one on port 2, both updated in a single BSRR write so they move in the same cycle. The CDC report gained a gap histogram, which showed the point boundary sits at 70-79 us against 62 us between stages, so the resync threshold only fires on the longer inter-sweep pauses; the misleading "stages per point" counter is renamed to match what it actually counts.