Yea the xpub in the dump file correlates to the card itself and a couple others listed for electurm. My issue was the .json xpub in electrum didn't match any in the dump file.

What I found is the xpub displayed in the coldcard is associated with still with the .json file created for electrum, so everything works perfectly air gaped and the card is actually really easy to use. It will be even better imo when they work it into use with Samouri wallet.

Seemed intimidating at first but really no chore at all to use with electrum, and even easier to monitor and send to with sentinel as well though maybe a bit of a warmer wallet in that regard pending veiw of sharing xpubs.