So I just picked up a pocket board (Appletree Mini 3'6") as well as the Armstrong hs1250, hs232 rear w/ 0?, 85cm mast, and 60cm fuselage. When I took off it for the first time today it was completely back foot heavy. Any pressure on the front would cause it to dive. I did what felt like a wheelie one way across the river and a wheelie back and by then my thighs were on fire and I was done. I have never ever experienced this.

I ride both the NP Glide medium as well as the Zeeko spitfire (canard) and both never needed any adjustments and were just fine in the most rear track position. Adding a shim to the glide rear wing increased speed but that didn't require any mast track changes. If I move the hs1250 forward in the mast track it's' going to be in front of my back foot which too me makes no sense. This foil has to have at least as much lift as my M Glide (Area = 1262cm2) and certainly more than my Zeeko spitfire.I will go ahead and try it moving the front footstap back a bit and the foil forward until it's in the middle of the track and see if that's more balanced. I also picked up the hs850 which is waiting in the wings till I dial in the hs1250.

I thought I might have to adjust the 850 forward a bit but not the 1250 which I assumed would need to be way back. I was even tempted to put the +1 shim on it just to make sure I could keep it down.

If anyone has any insight or advice please chime in. This is just very unexpected.

p.s. There is a picture of the hs1250 setup on top of my beginner wing setup in my profile. I'm a noob here so it wouldn't let me post pictures.

Thanks CJ. I've moved it forward, perhaps I need to move it all the way forward and ease it back. I'm going to bring the tool out on the water with me so I can adjust on the fly. Another thing, when I was out, I desperately tried to push it as fast as it would go (it's FAST!!!) in hopes that it would allow me to use more of my front foot but it literally didn't do anything..just wanted to go faster..lol.

I came off a similar experience riding the Zeeko Spitfire and moving into the Army. I started out with the HS1250 and the 232 stab. I had similar experiences but I could get up and riding straight away. At first I struggled with gybing in one direction, having the same experience as you. I ride a 1 meter Carbon Co Nang pocketboard. I had to adjust mast position the find the sweetspot, so I would start there. 10 mm makes a big difference. I would also use the +1 shim. After further experience with the setup I cut down the stab to a 212 after having a good conversation with Dojo and that (to me) was a big improvement and smoothed out the ride a fair bit. This is a great pumping wing and I have no doubt you will dial it in in a few sessions. The only difference in our setup is I am riding a 50cm fuse and I ride strapless.

Used to ride Moses 633 - mast all the way back.
Now ride Armstrong 1050 - mast all the way forward, +1 shim, 232 stab, 85cm mast.

Took a few sessions to get used to the little front foot pressure (even with the mast fully forward) - used to nose dive a lot to start with, not a problem anymore. I would not call it back leg heavy, it is quite balanced stance between front and back foot vs. front foot heavy on Moses 633. It is nice to have a balanced stance.

Like Armstrong for its more less stable lift regardless of speed - Moses 633 lift kept on going up as the speed went up.

I find that when I am just cruising my back foot is more forward. When I am riding swell or breaking wave or doing tons of carving turns my foot is more on the tail block. Once I got used to this foil it feels no different than any other that I have ridden. They all have a sweet spot. In this clip I tried to show different feet placements as best I could. .beI&fbclid=IwAR1UR2HqW-o3UbCmV1AUB2F2daaYr8XqzDJP0WUyF2hvNEpDWlO3v14bSWc

And I am using the +1 shim. Need to try the 0 to see if I like the turns better.

SquintEastwood said..
in the most rear track position

You'll have to trim the foil by moving it's position in the tracks... assuming you can.

Take the back strap off so you can move your foot around...

-2 =the most front foot pressure, 0 = neutral , +1 = the least pressure on front foot.