RE: RC Surfer
YPC
I Agree,
The Wombarra Bi-fin design is the optimal Choice. OZ Has Fin Design Down. Heck, Look what Simon Anderson Contributed (The Inventor Of The Tri Fin Thruster)
I tried many others, Like BB's Glassed Single Fin (was Break Proof), Ed's Tri Fins (Looked cool, didn't seem to add trim value) and Spenser's Brass Single Fin
But what worked The Best was the Bi-fin in my opinion.
The only flaw The Kyosho / NQD Bi Fin had, was that the stem would break.
Most all of us solved that issue with using a Stainless Steel Bolt Stem
Surfcurls took it further to make the Bi-fin with Carbon Fiber So It's solid as the rock / reef that it might challenge ...
Simon designed The Tri Fin 30 + years Ago ...
Note The "Aloha Racks". Do they Still Exist ? All We Use Now Is Soft Racks ...