go for it. once you get involved your own data will start to kick in.
my family was deep into tornados in the 70's. i sailed in many a race that Geoff Perry, the Sailcraft of canada guy, competed in. i even sailed in a club race as crew in England with Rodney March designer of the the tornado and the dart. we ended up forgetting the bungs as he called them. i suspect the dart has no bungs as a result of this and other similar incidents.
the tornadoes were first plywood(60's) then plywood or glass/polyester(70's), then glass/vinylester or cedar/epoxy(80's), then honeycomb/epoxy prepreg or wood.(80's-presentday) the boats have always been strong. the stiffness of the overall platform has gotten better over the years. sun weakens polyester and other resins, so an old boat that has been in the sun the whole time would be somewhat weaker than when it was new.
the fellow with the spi on an old panthercraft is pushing the envelope, but if that works, then any tornado made should handle a spi at least in moderate wind.