I have a quite similar issue when I go with a small board (typically surffoil size board). The body is kind of jumping out of water when I increase power while I am still in the water.
Wondering if my boogie isn’t too light and would beneficit of having some weights added, if I should put the towing point lower or maybe change the motor angle as you said.
I changed from surfboard to bodyboard, used some images on here as a reference and it now works fine, but submarines a bit so needs some foam forward.
Try a bodyboard, make a trim tab, put the weight forward and to the left. This is by far the best first base I think for a single motor setup. (I tried small surfboard and small foil board)
My message was not clear, I make a bodyboard pretty similar to the one of hadou and it works fine but I would like to use a surffoil behind it currently I only manage to start with a wingboard. If I switch my wingboard for a surffoil (behind the same bodyboard) I have it jumping out of the water 
We are in much the same position then.
I think a combination of better technique and refining the balance of the weight position and maybe more trim. Share pictures and videos if you can.
Will do currently I only have this: https://photos.app.goo.gl/Z8CqCCB1DNL5rKZx8 this is my 10 years old son (35kgs). 
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FYI I move my tow bar below the boogie and now it stays in the water and I manage a couple of takeoff with a 38l board and 1000cm2 foil (my self being 88kg baked). Only remaining trouble is that when I accelerate I have some hickups (engine seems to stop for 1s and restart straight away) when I reach around 50% don’t happen every time but maybe 8 out of 10 starts. Suspecting some esc parameters like motor timing or demag compensation may help but not sure. Any feedback of course welcome.
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Hello,
what do you mean about staighten the outline?
What are the blue tubes on the side made for?
Thanks
Hi, Hadou, would you mind sharing the core components of this build? 
Hi ! What do you mean by Core components ? I wrote all the list of the components on top of this topic 
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Hello. A board that has a narrow tail or just a tail that get a bit narrower as soon as you go down the board is no good fo lateral stability. this is especially true on a mono motor.
both sides of the tow should be 100% parallel which is never the case of any boogie board you will find on the market. Blue tubes where integrated for that reason.
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Hi, thank you for the reply. I meant the core components (motor, (v)esc, remote) that you guys have decided to go with for the “Backpack” version Foil Asist for now
Also, do you “waterproof/seal” the Saite motor, or there a place where you can order one (currently only have found unsealed ones)
@Hadou just to say thanks for the inspiration!
I have now got my tow boogie working. It is excellent, I had it in overhead waves with Silk 850 and 32 litre prone board and it was perfect. I’m amazed at the value of this for riding waves. I will write up at some stage, but for reference.
- 12S4P, Aliexpress 6384 motor, Sequre 12200 ESC, Flipsky vx3 pro
- 45" Boogie, decathlon surfboard fin, foam, PVC pipes, trim tab
- Camdenboss, passive external ESC cooling plate.
- Cut axis mast, 3d print mount, propeller king 2 blade
On full voltage there is lots of power for takeoff, but requires good technique, at low voltage the technique needs to be perfect and very difficult. I will probably upgrade to 3 blade propeller, double motors, follow mode and a number of improvements. For a beginner you can run the setup I have and ride a big board and foil with no issues.
It handles submersions, upside down through waves without issue.
I need to work on self righting, and stability in windy conditions.
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@volna…this rail outline works very well…single motor and With EVA float for heavier sea.
I will be upgrading this next year to a dual motor system…is great as it is though.
K
Love the quality of the build, good job man!
Btw, would it be possible to now the name of the cable gland/connector you have used in the built:
@volna … this is part of the Takuma ESC that in using which i dont think you can buy unfortunately. However, check out @hangloose as he has alot of excellent solutions for this and puts them on his printables account. Look at the LMT6 connector he designed: that is similar and has beend uses by quite a few builds on here. When i upgrade this to a dual.motor setup i will use those i reckon.
K
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