So, ehhh, thoughts on how to test these?

6 mounts X 9 plates = 54 mounts

How about:

If mount 1 is within 1C of stock average, it gets a 2nd mount.
If the best of the first two mounts is within .5C of stock, it gets a third mount.
If the best of the first three mounts is better than the stock average, it gets a fourth mount.
If the best of the first four mounts is at least .1C ahead of stock average, it gets a full 6 mounts.

That should filter the bad ones out and cut down my testing without any false negatives, hopefully.

(testing M-pede now and it's pretty clear it's not going to be within 1C of stock)