Kirt,
sorry for the late answer.
Thank you for your point of view re. "one design" vs. F16Hp.
I am not a measurer for Taipans, although I might have some good knowledge by now. There is no class in EU, not enought boats for one design races, so currently no need for measurers. Also, if people use some common sense and stick to the existing rules, we will not need measurers for a long time.
Re. masts: To my knowledge, there is/was no difference in the profile as such, just the wall thickness (which saved approx. 1 kg). These masts are no longer available (anyone correct me if I'm wrong).
Gebhard.