Tsunami transom replacement

[bigeasy1]

I've finished removing all the rotted wood from my 74 Tsunamis transom,and will shortly be installing new marine plyood.
I felt that the glass skin was very thin,so we laid up a layer of mat,and a layer of 1708 to build it up,and make it a bit stronger.

I've made my pattern,and plan on using two sheets of 3/4" marine fir plywood for the core.I have a few questions for those who have done Tsunami/Scepter transoms like this.

#1--Did you glue both sheets together,and install as one single piece, or did you place one sheet in and then glue the other to it.

#2 The original transom drain hole was offset to the port side a bit,because of the keel stringer.This would prevent getting all the water out when the boats on the trailer.

I was thinking of drilling a new drain hole in the center at the lowest point,and leaving the keel stringer stop just short of the transom.In this way i don't have to worry about a limber hole clogging up.Do you think the stringer has to be tied in?
Any input would be appreciated.Here's a few pictures. Thanks all.



Applying the cloth




applying more cloth



finished wetting out




tabbed in