So the old IS boards use future fins, not the newer IS proprietary fins. I had a mishap in the storage unit with my blue lake and broke one of the future fins (don't ask!). So now I need to replace. I've ready about people going with longer fins for more drive and I'm wondering whether anyone has tried any different sized future fins in one of the older boards?
Presumably the same question would apply to Yellow Loogie riders out there.