I apoligise in advance for these questions which may seem stupid to some, but i come from a world of custom cars and if something doesnt do exactly what you want but you still love it, you modify it to fit the use!
i was reading an article about rib design. Alot of ribs are based on existing sportsboat hulls by the sounds of it? A rib is supposed to not sink if you hole the hull as it has tubes yes, and not sink if the tubes split cause you got a hull too.... But surely when they glue the tubes on they cut the height of the hull down, does that not reduce the hulls water height and integrety as a hull (say if tubes split)?? why dont they sick the tubes on the outside of the hull, like a d tubed boat?? and if thats the case can i have some tubes fitted to the outside of my phantom and make a rib?? (a phantom rib!!!) Have people done this or is it just for you clever kids! Surely the biggest dilema has to be tube height with the water?