A Canadian Cluster should have readouts like this?

ZoomZ

In my opinion, no, it doesn't matter. Like I said, I cannot see anything definitive in FSM. I'm only guessing.

So many variables here. It's odd that the current, non-original cluster, has a failure only in the S-Rev circuit.

But the fact that it had blown a fuse on your initial purchase, makes sense that other things could be wrong with it.