Yep ,agree with Rolf also and as others noted particularly the calibur of sailors on them .
Place these teams on any type of cat --{like f-18hts for example} --in any event --{little AM Cup } in Italy --and they sail them faster than ever previously recorded at higher speeds around the course.
The only negative aspect I,ve heard about the T from T sailing teams is the tendancy of the narrow knife like bows to dive into waves when overpowered with the added spin .
This makes perfect sence as the original design intended a main and small jib only , and the class wished to maintain the original tolerances for hull design ,which was often in wood or stressed skin plywood method of construction in previous decades.
I would like to see more innovation in rigs -sail plans -etc in the 20 ft size range ,--The Marstom 20 seems a beautiful functional lightweight design as well .
Real innovation will best develop if there are more open racing type events and classes available for the innovators ,-the speed sailing trials are always fasinating for example .
In the 20 ft range there are numerous cat design choises now .The new H-20 is supposed to debue soon ,-the Ventilo 20 designs seem excellent -the Marstom of course -and several others seem comperable to the T or potentially faster with the same calibur sailing teams on them .
CDR