Unfortunately, no pics were able to be taken of the rolling of the mat. After lots of resin was applied, I used my roller tool to press the mat into the resin and wet it well. Then, the other half of the transom was placed on top, aligning it using the bolt holes and hardware.

Here, I am putting small wood screws through the layers of the transom to ensure a good bond between the halves (well, actually the 4 parts).

After that, the transom was put aside to harden and cure. We hoped to get it in the boat after a few days.
As usual, Mother Nature had other plans.