I've lost or intermittently poor reception on the following:
KRON - intermittently good reception (Final configuration)
KPIX - occasionally poor reception (Appears to be on Aux antenna and half power)
KQRQ - intermittently poor reception (KQRO?? Unchanged)
KPJK - intermittently poor reception / lost reception (Final configuration)
KKPX - totally lost (Final configuration)
Been through some changing weather patterns lately (Fall is back this week). Also noticed that sometimes reception as a whole is better in the wee hours of the morning.
So environmental conditions may be affecting reception.
Sounds like you're relying on some ducting. The time to judge your reception is in the mid afternoon when there's no ducting.
What and where is your antenna?
1) Are the engineers still making tweaks to optimize reception in the SF Bay Area? If so are the game plans for the tweaks made public?
2) Is the effort to tweak broadcast signals coordinated to avoid interference? (term I've read on the forum in "multi-path interference)
3) When can we expect the broadcast situation to be stable? Don't really want to invest in and new technology or fiddle with my antenna until then. Wait for an ETA date for Phase 9?
Phase 9 is complete. All stations have moved but some are not on their final antennas or final power. Multipath has to do with your reception. The stations cannot control this.
I added my comments to your station list above.