Yeah, I know about the poor connection. I just need to do the repairs. I've done a few already, but it's been a while and I couldn't remember the value of those resistors.
That is correct. ie. assuming that the edge connectors never get worn, tarnished, broken, or accidentally pulled away from the card edge while the game is running, etc.
The sense mod really is no big deal. But it will save you (or the next person who buys your game) from having to worry about this again ten years down the road.