TB,
Beautiful board mate! Lovely fin too.
I didn't read all of the replies, but my mate Doug talks about "Fin Shadow". What you have is a big "D" Fin, with a big cut-away.
But your D-Fin has modernised Greenough influences... Can't go wrong with some Greenough influence!

Also keep in mind that fins are often called "salt-and-pepper"... You board, template, volume, rocker, rail shape, etc, and "The Main Course"! And fins add some lovely "salt-and-pepper" to that main course! If you have a "crook" dish, then "salt-and-pepper" only improve it slightly...
Sounds like you have a lovely "Main Course", and fine grade salt and pepper!