So at this point I have tightened, greased and adjusted everything possible and still getting creaks.
Seems to be mostly when in the big chain ring, on somewhat level ground, standing up and mashing on the pedals. Not as bad when climbing and when I am in small ring climbing I don't hear any creaks at all.
I'm back to my original hypothesis that it's the BB30 to 68mm bottom bracket adapter. I have read about a lot of people getting creaking from those. Some people have suggested various adapter that are supposed to be better. Replacing the adapter will mean disassembling the bike and probably paying LBS to do it and I don't want to do that unless necessary. If the adapter is coming loose , am I at risk of destroying my frame? This is a used 2009 frame and I don't want to dump too much more money into it