I think CS has become intermittent. For a few days (after Jim's post) I looked for the usually reliable CS just after sunrise using my home RX or the SDRs. Nothing but static.
But last Thursday something interesting happened: suddenly, around 0850 local (CA time), it came on. I had left the RX on after checking at 8am. However the 'slides' were weird and oddly formed - erratic and shortened, in groups of 2 or 3 with long pauses in between. This went on for 10 minutes and then stopped. Checked again several times that day and it was not heard again. I noted the CA weather that day was a mix of rain, clouds and occasional sun.
Today I checked at 7am, and again nothing was heard. But re-checking at 10am - there it was sliding away merrily, with a strong signal. So CS had started up sometime well after sunrise today. And it's still there at 8pm. North/Central CA weather was sunny all day. Maybe CS is having charging/battery problems?