just did a test that seems to determine the condition of pcv, seems like the pcv is alright?The good news is the business end, deeper down in the pic where the springs and valve seals are seems pretty clean. In my experience the sludge comes from the bottom up, but the bottom looks cleaner than the top.
OP- just a thought but check the PCV system and make sure it’s breathing well. That’s strange to me to see the top caked up like that but the valleys ok. I hope the shop at least cleaned the top off with a rag, scraper and shop vac.