For thos that have done pourable transoms?

[nymack66]

Its very easy to drill so don't worry about the holes you will need to make after a hole saw will cut it just fine.
As for the holes you need to seal it all before the pour, tape it up with tape from the outside skins, use a roller with a long handle and clean up the inside skins with acetone then use Resin to seal it all up from the inside. Please make sure you seal all holes with resin and cloth if you have to, when the Arjay is setting up it gets very HOT and if you use only tape it will peel off and create a mess .
I use plywood to frame in around the top of the transom (cap area) and pour from the highest point of the transom using a road safety cone for a funnel the Arjay is so liquid it flowed to the other side and self level itself.
You can use a angle grinder to shape the top (cap area) to perfection after the cure.
Good luck..