Grantmac forum posts in last 60 days

Grantmac
Grantmac
2395 posts
2395 posts
16 Jul 2026 2:46am
Roberts will only do their designs, not proper custom.

Maybe North Pacific?
Grantmac
Grantmac
2395 posts
2395 posts
10 Jul 2026 3:43am
None of those manufacturers are racing in a serious way, or building foilstyle boards. Freeride doesn't generate the forces where a suboptimal fit using just tapers would matter.

The ones who do race promote the use of roof contact via shims.
Reply in Topic: Windfoil in the waves
Grantmac
Grantmac
2395 posts
2395 posts
6 Jul 2026 6:58am
Hess said..

Gurra said..
Hi. The setup for that day:
Severne Predator 110
Sabfoil BALZ PRO set
Front wing 969
Flat stab 370
Mast 83 cm
Fuselage 90 cm
Severne FoilFreek 4.4
Severne Enigma 140–190 cm
Severne Blue 400
RDM Severne Cyclops Carbon 24 cm
Severne Harness Lines 32"

I have the BALZ PRO 969, 909, and 808, and I love them all.
The 969 is great in lighter winds and has a nice glide in slower waves.
The 909 is faster and better for jumping.
I’ve been struggling with backloops (the real backloop, not the freestyle backloops you can do on flat water—the one where you go straight up, pause, rotate, and then come straight down) with both the 969 and the 909.
Recently, I started using the 808 together with my 3.3 sail, and that has been a game changer. Now we’re talking about proper jumping and fast wave riding. I’m making great progress with the 808, and it feels like it’s only a matter of time before real backloops are in the bag.

The predator 110 is to big in waves. To long, to much volume. I have the Predator 95 incoming (shipping from Asia). That will also help in backloops and waveriding.

/Gurra (88 kg)









Your set up makes sense to me.
My current go to set up is also the 808/325 combo. I had a custom fuselage made that is around 810cm but moves the mast pocket back a couple inches from the stock windfoil set up. I find it allows me to carve in tighter radius and get back on the wave face quicker in a bottom turn.
I also use the 707/325 combo quit a bit now it is fun to turn and handles better in bigger faster waves but takes a bit more wind to get going so on lighter days I am back to the 808. Of course my definition of light wind is different as I really only foil in Maui.
These foils are fun but are really freestyle foils and on bigger /faster waves provide more lift than is required . Although that extra lift gets you going on a smaller turnny foil. Life is full on compromises
The biggest equipment change that raised the fun factor for me is the reduction in distance between the sail base and the front foil.



Can you post a picture with some dimensions of that fuselage?
Reply in Topic: Windfoil in the waves
Grantmac
Grantmac
2395 posts
2395 posts
3 Jul 2026 11:03pm
sailortrash said..

Grantmac said..


sailortrash said..



Grantmac said..
What tail and front wing are you using?





Most of the times im on the balz pro 969/370 stab, no shims




Your weight and board/sail?



Fanatic foilstyle 103, normally 4.0-3.3 in swell conditions, 78-80 kg



sailortrash said..

Grantmac said..


sailortrash said..



Grantmac said..
What tail and front wing are you using?





Most of the times im on the balz pro 969/370 stab, no shims




Your weight and board/sail?



Fanatic foilstyle 103, normally 4.0-3.3 in swell conditions, 78-80 kg



You might be able to get away with the shorter fuselage, but I'd drop wing size before that.
Reply in Topic: Windfoil in the waves
Grantmac
Grantmac
2395 posts
2395 posts
3 Jul 2026 4:30am
sailortrash said..

Grantmac said..
What tail and front wing are you using?



Most of the times im on the balz pro 969/370 stab, no shims


Your weight and board/sail?
Reply in Topic: Windfoil in the waves
Grantmac
Grantmac
2395 posts
2395 posts
2 Jul 2026 12:11am
What tail and front wing are you using?
Grantmac
Grantmac
2395 posts
2395 posts
23 Jun 2026 11:42pm
Laser surgery was the best money I've ever spent.
Grantmac
Grantmac
2395 posts
2395 posts
15 Jun 2026 2:17am
Honestly both are a pretty bad solution.

Tuttle works best when the vertical loads are taken by the roof, we've known that for years.

Where winging and small sail freeride windfoiling diverges from IQfoil/other racing is the sideways leverage which is rather a lot.
I don't see Tuttle boxes being designed with walls that are really built to take these forces. They need some ribs running horizontal through the entire ABS foam block, not just thick walls.
Reply in Topic: waist- or seatharness?
Grantmac
Grantmac
2395 posts
2395 posts
14 Jun 2026 1:10am
I use a harness when I wing. I also use footstraps.
Harness use is about 50-75% of riders where I am, footstraps maybe 40-50%

I wouldn't want to windfoil without both.
Grantmac
Grantmac
2395 posts
2395 posts
12 Jun 2026 10:54pm
I wonder why they didn't go with two slots rather than a series of holes. Obviously there is some strength difference but it can't be a huge amount considering the entire top of that box must be mostly carbon.

You're saying this board is compatible with regular Tuttle?
Grantmac
Grantmac
2395 posts
2395 posts
12 Jun 2026 2:06am
Doesn't rely one bit on taper engagement....like I've been saying for years.
Reply in Topic: Going bigger to uphaul
Grantmac
Grantmac
2395 posts
2395 posts
26 May 2026 1:07am
I know someone using XPS who purposefully doesn't fill all the pinholes and just lets the board breathe. That's for wingfoil boards though with less force on them.