Tried the 34cm Hahalua Makani weedie in the 90 ltre Excocet RS2 with the 7.8m overdrive today. Technically I bought that size fin for the 7m sail so a little smaller than recommended. Should be even more solid with the right sail size ( if we ever get enough wind to use a 7m again!

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Gusty 10-17kts small chop 6-8" at canton.
It was great! Went upwind great , only spunout once when I waved at someone and lost attention..

.. I'm still a little careful of fully loading fins after my previous history with small fins but what a difference to be able to trust the fin and load it !
I usually shuffle upwind with not a lot of fin or sail pressure but today I was sailing upwind like everyone else.
It's not a speed fin so probably not as fast as BP etc . It has a 43 degrees rake and no worries picking up weed although it's not that thick there at the moment.
I haven't tried it in 2-3' chop yet but so far I'm really happy with it's performance for what I want it for ! ( upwind / spinout resistance)