Wouter,
It seems to me that you are one of the only ones that has an issue with the F16's not having T-foils.
After sailing the Aus Blade at Zandvoort - i was very content with out them. The only serious nosedive i had was when my stupidity took over.
The only time I would consider a t-foil would be for stabilisation of upwind sailing in choppy water.
Maybe you should organise a test sail of Aus-401 before wasting your time on the t-foils.
Marcus