i was the guy who sparked that question a few months back. I raised the deck height 2" ,and stretched it t o18'8"

i have glassed outside's and everything flows.

i also added some concave to bow and stern.

mods were easy with a cad program (autosketch)

The only complications came in adjusting the end forms .

draw (on cad) the strongback looking from the side with 13"spacing and move and modify the shape of the end forms t omatch

craig ,

measure twice cut once