>>Fx-1 and I17R--they are quite a bit bigger than the Taipan in terms of hull size and rig size

Are you sure about the FX-one rig size. Because the mast of the FX-one is 8.5 mtr tall just like the Taipan and the mainsail area is given by Texel to be 14.91 sq. mtr. while Taipan is 14.58 sq. mtr. a difference of only (converted to ft) 3.5 sq. ft. F16 allows about 14.85 sq. mtr. and is as good as the same size as the FX-one main. Spi's and jibs are the are the same size. F16 selftacking jib is only a bit smaller ; by some 13 %

I-17R rig is alot bigger though. But no jib as far as I know although there are some rumours about a jib kit being (made) available

Wouter