For my part-time i76 (snowbird to Florida in winter), I use the B position in an old formula board that has the stock deep tuttle head way far aft. Sail mast base is 44 inches forward of the front fin screw; sail is 6.8. This is perfectly balanced with even foot pressure between back and front foot.
Select to expand quotedejavu said..
I used the i76 with both my Isonic 130 and my Wizard 125. In B position with the Isonic the i76 felt very balanced and easy to ride. With the Wizard I was constantly breaching until I moved the wing to A position on the fuselage (even though I was told this was not a good idea), which tamed the foil considerably. However, in A position with the Isonic I could barely get the board to lift (huge amount of back foot pressure needed) even in big gusts. I placed the sail's mast in the middle of the track with both boards -- sail mast track is located about the same distance from the Tuttle box on each board).
I now have a Levitator 150 and SS FS115 and I'm attempting to find the best setup for the i76 -- foil mast track, sail mast track etc. In my opinion the i76 has a huge amount of "extra" lift in gusty conditions when used with the SlingShot boards (at least with the Wizard 125) and needs to be tamed by either using the wing in the fuselage's A or B position along with careful foil and sail mast track positioning.
I don't have this issue with my i84 wing.
I should add that in another forum Wyatt Miller of Sling Shot noted that with the Levitator 150 the i76 should be mounted in B position with the foil's mast at the very back of the foil mast track and the sail's mast 3/4 of the way forward in its track. At the time I thought this was a bit extreme. Not anymore!
From another forum -- here's Wyatt Miller on how to set up the Levitator 150 for the i76 and i84 foil wings:
"For the Levitator I usually put:
The 76 in Fuse position B and then move it all the way back in the track (Using the outer most pedestal holes)
I have my front straps all the way forward and outboard and my back strap one hole from the back.
Mast base at 107cm from the front of mast or in the middle of the front half of the track (3/4 forward).
Then when you want to use the 84cm instead of having to flip the fuselage and remove all those bolts, I just remove the 76 and mount the 84 in the same Position B. Now if you move your pedestal mount 2 inches forward it should be just right. If you are riding with too much weight on your back foot you can move it another inch forward. Too much lift you can move it back a bit. But 2 inches forward should be perfect.
Stoked you are having fun on all the foil gear. Best tip I give people is that it is all about really moving your hips; forward over the front foot to keep it down and then back over your back foot to rise higher. Just trying to apply pressure to one foot or the other does not have a continuous effect unless you actually move your hips over that foot."
I think this is going to help me out GREATLY with my setup.
On Saturday I sailed for about 2.5 hours on my i84 with a 6.0 Flyer, and another hour with the 7.0 Flyer. Then the wind had backed off enough to require my 8.0 Ezzy Cheetah and the i99. I set up as I normally would, and tried to really pay attention to my balance and foot pressure. I think i am sailing with WAY more back foot pressure than I realized.
I was about to call Wyatt and get his take on this when I saw your post. I am thinking that I could set up the Levitator 160 quite similar. I think i am sailing with the foil mast at least and inch too far back... maybe an inch and a half.
