For thos that have done pourable transoms?

[Chomper]

I also used Arjay and had excellent results. It is easy to drill and shape, but be sure to resin and cloth those holes as nymack suggests, I tried the duct tape and it did hold on all but two holes. The two holes it didn't hold on created one heck of a mess. As for the cap and up the sides, I used some old paneling to form up the top and poured from the highest point and it worked very well. I found Arjay very easy to work with.