God help any one who has the same problem I do, because that means they made a really sh***y longboard lol.
If you look at the clip of me riding it (I'm a beginning LB rider, haven't ridden any board over 8' more than 12 times, total, in my life) I think you can tell from how the water is rolling over the deck well forward of the sweet spot, that the board has way too much nose rocker, and too much rocker overall. Ironically, that makes the board easier to ride for an adv-int shortboarder just learning to ride LBs and noseriders. In short, the board is a noserider that doesn't really noseride. In that way it has a lot in common with the 1st `10 or 15 boards I made. Nearly all of them worked, just not for the waves and situations intended.
Anyway, I have the good luck of being neighborly with Halcyon, so I had the good fortune to try a lot of different fins in the 9 footer (technically 8-11 after nose chop), already described. I didn't find much on the web about the butterfly fin after riding it. I think this thread probably has more info about it than any other source on the web, now.
The 9-footer has goofy but not unique problems. I thought it was pretty neato that of all the fins I tried, two very unusual ones were the most pleasurable to ride. Could be of use to someone in the future, maybe not. But I bet yes. In, say, another 12 or 14 years or so. And then that person can catch undeserved stink-post for it, too. lol
Send me your dinged, damaged, and yellowed.
That’s a clip of someone riding a “Butterfly” fin?? Doesn’t even work as good as I thought it would. That fin by the way was I believe designed for a particular model of board that Dale shaped. But not intended to be used exclusively On the “Malibu Express”.
Ha...(1) That's me, & not illustrative of what that green/red incarnation would surf like under the feet of someone more skilled, as (2) I didn't surf for 20 years, (2) am a beginner again, had only been on a board over 8' maybe 14 times in my life, only a few additional times on an 8 footer a bud made, and (3) no skilled longboarder would call the board a good one (too much rocker, front half of the board, by at least 2", maybe almost 3" - it's a plough).
That said, I got the current edition of the V-fin. It's not remotely the same as the red & green ones - it's much, much larger and seems more upright.
The vintage red fin, which seems to be the same as the green fin Rich let me ride, helped an inherently sluggish board feel more lively. The current edition made the board sluggish again. Probably like thw majority of proven fins I've tried it would work much better on a board with better rocker. The smaller vintage one feels better (to me, maybe not a more skilled rider) on the crappy board, and maybe would feel worse than the "update" on a better board.
If anybody has the red or green vintage one w the center hole, I'm down to trade just about any other fin i have for it.
I think the same could be said of almost any fin. I can change from a 10” Rake to a 8 1/2” Flex fin and my board(any board) will feel more lively.
What I’m seeing there is not a criticism of surfing ability. What I’m basically saying is I don’t see it being as beneficial to average surfing. We all know that really good surfers can paddle out on an ironing board and make it look good. That’s a given.
So, by that logic, my not being "really good" (not being sarcastic, I think I surf "OK," nothing beyond or less than that) should be more useful than someone more skilled.
Taking into account what I already related, and what you can see -- and you can see how the water flowing over the deck confirms what I say about rocker, I think -- what would be different, what would you see or not see, if the fin was working better just as a fin?
Actually; Yes! If it makes little or no noticeable difference in an average surfers surfing or for that matter a Pro’s; then what is there to rave about? I don’t see turns or cutbacks that are harder or snappier that can be credited to the fin. Don’t see any floaters or prolonged noserides. So what is that fin supposed to do?
Yeh, that was 10 seconds of the first wave (I think even smaller than it looks) that I took with an unfamiliar fin, the 10 seconds that the Surfline cam caught. The wave was longer, maybe another 3 times as long as that first 10 seconds, and it felt like I got off as good a cutback as I've gotten on the board in the 6 or 8 times I've ridden it now (a 9.5" Rainbow TK Flex might turn a little better on the heel side for me, but it bogs faster when transitioning from the pocket to flat parts of the wave), but that turn wasn't caught by the cam so who knows. Usually my rides are not remotely as shredful as I thought they were when they were happening lol.
The board wants to bog so fast when leaving the power of the wave, though -- and as an LB'ing noob I'm probably almost always too far forward when initiating cutbacks or reentries -- that the little speed check you see in the clip is about as "radical" a cutback as the board is going to make in waves that small and unjuicy. With one of the MDT or TK Flex fins that ride somewhat OK in the board, I don't think it makes even that much of a cutback on that wave -- probably not nearly, and all that would have happened there is a stall without any kind of turn to speak of.
I think it's specifically the weaknesses of the board that make the green fin Rich kindly lent me a good match for the board. It's a common problem, a wonky board requiring a somewhat unique solution that might not be as good a choice for a board that behaves better, or more like one would like it to behave ("better" being a subjective, rather than objective judgment, much as sometimes certain types of people seem to assert otherwise). I think fins you might think were better, without even seeing them ridden by the rider in question, aren't better in this board. Probably most riders more skilled than me would have the same finding on this board. I suspect you would think some of the fins I already named are better. For me, in this board, they really aren't.
Still looking for one of those earlier, smaller, less upright butterfly fins, like the red one in the photo earlier in the thread!
If anybody has one I want to buy or trade for it -- I have plenty of fin options if trade is preferred, including some custom fins.