yes, aren't you asking too much from a comptip with a giant gaff like that?
also the luff round on the sx design and the tornado design look to be not enough. i would think a mast could bend more than a couple inches. perhaps i am mistaken. certainly a quick look at an existing sail would tell us. that project is on the list. here is my current result from this fun little program. i didn't research the actual #s from my current modified tornado sail that is on the modified H18sx thatwe sail theses days.