Berne said..
I'm interested in the idea of different fins as that wasn't a thing when I last windsurfed. Also like the idea that it is easier to gybe on modern kit - anyone know why?
It's good to match fins with board and sail, wider tail really need longer fin. larger sails also go better with bigger fins.
For downwind speed smaller fins are faster, for heavy chop longer fins are better.
A quiver of fins gives you more tuning options and more confusing decisions to make.
When you talk about gybing, are you referring to carve gybes?
and is it easier to sink the rail to carve tight. Or is it to have more stability when sail flipping and coming out of the gybe.
There's so many aspects to a good gybe, a certain amount of precision is required when comparing the merits of any boards.
There is also a large range of modern boards, wave and freestyle will always gybe tighter than freeride, slalom or speed. Due to rocker line and profile shape.
So when comparing new and older boards you need to compare apples with apples.
Modern wave boards possibly turn better with multifin setups.
Old slalom boards had very hard rails, this made them very technical to turn.
I think all modern boards have a certain amount of "tuck" starting from about the front foot strap and increasing towards the nose.
This is much more user friendly.
Seems like I've given you the long answer, hope it's a relevant to your question.
