Originally Posted by Pete m.
I think I would be more worried first with the grouping of your service disconnects... but to answer your question it depends on the listing of the lugs. I can't recall any factory meter socket lugs that permit more than one conductor per terminal.
As for this arrangement, it was existing. I don't see a code violation although it would've been nicer feeding from one panel to another versus both being treated as main panels. Im not near my book, I could be wrong.