Your stringer IS an integral part of the Strenth of your hull. A Plain Butt joint is NOT advisable. Even though it will be "Sistered" a butt joint will be susceptible to the stresses of wave and wakes. I would highly recommend you try to attempt the scarf joint in some manner. IF you do just use a butt joint then PLEASE use Epoxy on the joint and NOT Poly resin. Epoxy is much stronger. If you do this then you have the issue of Poly NOT wanting to stick very well to Epoxy so you have to make sure NOT to get much squeeze out so your layups will work. A lot to think about
Now that is a really good question Rick. I still don't know. I would like to have the pedestal seats but I guess I end up with the Wise back to back from Walmart. Can't beat the price $140.
What are you installing? Do you know how the bow backrests are attached to the hull?
Guess this "Dumb Okie" is just being a little Paranoid.