Fin Box history

A workmate recently gave me a shortboard that has a box/fin type that I have never seen. Can anyone give me some information on this FCS-like fin box?

Guidance G System.

Many threads about it, especially one quite recently: probably not more than two or three days ago. Can’t remember the title, though.

Got it. Page 4, last post on July 25, title is : “Help me identifying this fin-box”.

Wow, that is one ugly board!

Thanks Balsa - Guidance Fin…and yes the board is actually uglier in person!

Definitely a Guidance Fin. Oddly enough, your board looks a lot like the one I have with a Guidance Fin. I guess they’re not so rare afterall.

Hey Rachel - does your board have any identification as to who might have shaped it? My board looks like it has had a face lift (that went bad!) so any traceability has been removed. Additionally, even though this board is of shortboard dimensions, it actually has a stepdeck feature built into the rocker?? Does your board have this as well?