1-- how tight should the main tramp be?? I was going to tighten it up this weekend but I thought It might pull out of the retainers attached to each hull. The 16 has a very explicit specs for tightness.
2-- I know there has been a lot of talk about not trapping off the seat, there has been two reasons for this -the seat was not designed to handle the load, -- it would exert too much down loading force on the mast and possible bend the X-bar the mast sits on. Would not the force exerted on the mast be exactly the same regardless if you stand on the side on the hull or out on the seat?? If you replaced the two extendable tubes on the ends of the seat that keeps the seat out with a one piece pipe would that be safe?
06 getaway -- always remember, man with both feet in mouth have no leg to stand on.