Got off my ass and went to check a couple things.
Cleaning of paint underneath ground is pretty piss poor in my opinion and I was easily able to loosen it, to easily...
This lead me to check the screws for AC and PV connections. Before and after tightening is what I'm showing if the picks load correctly, I'm irritated. I've never had an issue with the ASF, I honestly can't remember if I checked them before installation.
PSA - check connections for tightness.
6AWG THHN is no problem, it wouldn't fit with the insulation on. I don't have any 4AWG, actually I have some battery cable somewhere...
I can see the pics didn't load correctly, righty tighty, they will make sense.
Ps I put the hot in the neutral intentionally