Price? Available yet? Web Site?
I'm not sure I'd like my feet strapped together through an entire dive, and wonder about using such a thing in kelp, but it is interesting.
As I recall the Dol-Fin version I used was around $750 ish.... And I have spent $500 and more on carbon fiber Freedive fins before...so it is not that much of a stretch...and it is way less than my Gavin scooter.
For Freediving, they are very awesome.
For kelp? That would not be my first choice....I have dived it like it was nothing in bp/wing and freedive fins off of Catalina....but blasting through with the Dol-Fin would worry me....One of these days, if I remember, I will ask the inventer, Ron, if he has ever done kelp with his mono-fin.
Of real interest to me at the moment, is his promise to work on a version for Veterans that lost a leg... JIm Abernethy created a big movement ... Operation Blue Pride, where they are taking our wounded warriors to the Bahamas, diving them with sharks, and giving them a new "mission" in life to protect the ocean and sharks.....It has become wildly successful, and many of the heroes that at missing a leg, could benefit more from the Dol-Fin technology than from a normal bi-fin..... And...Bob Evans has created a special Force Fin for these guys and girls as well--the ones that are double amputees...Bob's fin, the "Jiggly Wiggly", is easily oscillated by arm based upper body sine wave actions, and this translates to the fin kicking out vastly more speed than these veterans could muster with just their hands...
See an Operation Blue Pride Trailer..
[video=youtube_share;lBFnMY1aCEs]http://youtu.be/lBFnMY1aCEs[/video]