back to the drawing board as they say
there were a few flaws that showed up when the 2D CAD drawing was modeled in 3D
first the foot of frame Z did not quite fit into the deadwood step
that was fixed so it now looks like this
next error was the transom pieces did not line up with the inside of the stern post
that was taken care of so now the back edge of the transom pieces line up with the inside of the stern post
problem with the location of the wing transom not sitting on the fashion timber and notching into frame Z
fixed it
with all the little errors corrected time to install the stern timbers