Just curious what you prefer and why? Unfortunately, my entire quiver is pretty much FCS. Whenever i get around to buying another shortie, I'll make sure to get futures to compare. From what i've seen, it seems like futures seem to be a better engineered setup. Have you noticed a big difference? I broke some carbon fiber fins on my lost rnf due to not having the fcs screws in tight enough. From then on, i thought that was kind of a lame risk. It was my fault for not tightening them i guess, but it doesn't seem like that would happen with future fins.
probably a good thing you didn't have your fins too tight i ran over a board with my rnf yesterday and the black part that holds the fin kind of ripped up the edges of the fiberglass that holds it in place all the way around
I used to break FCS fins/boxes all the time.... ive broken one fin since i switched to futures; hit a big rock and it snapped clean in half without damaging the fin box at all, im definatly impressed with the strength and performance of futures.
As far as fin design, I think both fin systems are very good. The future boxes are stronger especially on boards thinner than 2-1/4". I have repaired many boards with fcs where the plugs have pushed thru the deck because the board was so thin. Just happens that the fins are located where most of the deck crushing occurs. I have never seen a future box push thru the deck. I have also repaired a lot of fcs plugs that were ripped out because the fins hit the bottom or a rock. However, the last several boards that I have had to repair for this have been future boxes so when it comes to hitting sh*t it really doesn't matter which box you have. The future boxes are much bigger so when they do come out it leaves a much bigger hole and therefore a larger repair. All and all I prefer futures over fcs. I just wish future would make the fin weaker at the box so that the fin would break off instead of ripping the whole box out.
if you are only considering these two systems, then i recommend the futures. the futures system distributes the stress forces to the board better due to the full base tab/box interface.
the down side to futures is the way they are installed in the foam of the board, they will eventually compress the foam around the box and become loose over time.
i am a board builder, and have just started to experiment with the probox fin system. one of the advantages of this system is that you can adjust your fin position in the board fore/aft as well as the cant angle. fin position has a huge affect on how your board will ride, so not only can you change the ride of your board by changing the fins but you have alot more choice with the fins you already have. the probox system will accept fcs fins, and futures (with a little trimming of the base tab) as well as having their own wide range of fins.
i will get back later with a ride report on the probox, but i put them in my board for bigger surf, so it may be a bit before i get to ride it. until then, google "probox fins" and check out their website to learn more.
if you are only considering these two systems, then i recommend the futures.
I'm open for suggestions. If there are other fin systems people like, then I'd like to hear about em. I have two O'fishl fins on my longboard for the side fins. So far they seem alright. I haven't removed them yet because i've heard the z-clips break and I don't have any spares. Plus I don't travel with it so I just leave them attached.