340 Rod questions

This can't be accurate as a thicker bearing will still center the rod on the journal as its equally "thick" the entire way around the journal. The ring pack wont move on an undersized bearing.
You're right pishta....if the oil wedge stays constant all the time, all around. But it doesn't.... and I think that is the reason. Probably worth some more thought...at least on my end. Tnx