Quad fins with stabilizer fin (some might say knubster)

[Chris]

i like the baby quad trailer thruster set. tell slater.

[Muz74]

NO! Tell Taj! Hahahaha!

It may not work for everyone but I have fun with this set up in tiny surf. This set up probably has the same fin surface area as a regular quad set up. I'm not a scientist but experimenting with fins is something everyone should try, it gives you a few different options for the one board and keeps the stoke alive.

[Muz74]

Must add some info here, after going for a surf in pretty fat small waves yesterday this set up didnt feel so good, so I would have to add small sucky waves are best for this set up.
I also tried SF4'S with a knubster in the same surf and it felt pretty stiff.
Will try the SF4's again with the knubster in something bigger.

[Chris]

for sure Muz. I rode the knub in soft surf and hated it. better when the wave has better shape and you have ample speed. if you have to generate speed in small surf, the drag isn't worth it.

[Muz74]

Today's quad set up, PC7's at the front with some old GL's in the rear, went unreal in 3ft fat waves.

[saxman1]

Hey munz74, would you say the little rear quad fins add any speed to the set up u posted that looks like a thruster on roids? It makes me want to try my Rusty thruster set with little twinzer front fins in the rear quad position.

[spawne]

Love your work slowman,
I think I will do the same. Bourton shapes (murry bourton) has his own personal fins as well, one for the quads and one for wide tail thrusters. More like your first one, worth checking out. Also how do the rusty fins go? Can you compare to any other fins?

[Slowman]

Spawne, I find the Rusty quads fast, loose and have good drive. Looser than a GAM/Q1000 set and probably a tad faster too. The GAM/1000 have good drive and great release off the top and so do the R2s. The GMB ("Mayhems") quads are a tad looser than the GAMs and with perhaps a touch less drive. They also use a rear 80/20 foiled Q1000.

I have a JS Kingpin which I originally put the Rustys in and the board was insanely loose but lacked any drive whatsoever, one of the best days of the year and I took my new kingpin out and after every turn I almost stopped dead in the water...so that is why I ended up getting a GAM/Q1000 quad set. I got some drive back and it was still loose, but this combination was way too stiff for the dominator so that is when I tried the R2s and it all seemed to click a bit more and then with the little stabiliser, voila, it finally went how I wanted.

I've also tried the K2.1 quads (also use a rear Q1000 but flat foiled) and they were fairly similar to the R2s with a touch less drive and speed I think but were pretty close in feel. I haven't tried any others the R2s seem to work really well for me. I use them in my spitfire and my hellfire too.

[spawne]

Slowman, Sorry if that first part of the question was a bit hard to understand, but just joined. I was referring to the stabilizer fin. Have you tried the knubster to you home made fins as they seam to sit futher back or forward then yours in the thruster position? I have a Dom which I love, but dont surf that much, and at a intermidate level. I am starting to link relaxed turns when my feet are in the right position. Would the helfire take a few waves to get used to each surf compared to your kingpin? Both boards I was considering for bigger wavers.

[Slowman]

Spawne, no never tried a real knubster. The hellfire had quite a familiar feeling and didn't take much getting used to as I'd ridden boards that felt quite similar (bat tail quads with single to double concave) but I suppose coming off the king pin it wouldn't take too much either. The king pin is very loose but has less rocker than the hellfire but still enough to be able to drop in pretty easily on steeper waves, though the hellfire is even better.