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Fun to see it! also fun that hes basically speedxrunning alot of the issues we in here that built tow boogies 
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yeah super cool to see all the exact mistakes that everyone makes. It’s a tricky design to get working.
I thought it was a pity that he didn’t start with a tow boogie and iterate on something that works, as he didn’t really add anything to the design space. If the hull wasn’t so stubby then maybe those strakes would have worked better, but the starting point was such a weird shape that it seems like he was fighting that throughout.
The flared trim tabs were interesting
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Not that I think that it would have fixed the design but not changing the dual tow points to a single in the middle is weird he overlooked.
I feel that a mid tow point more yaws the boogie left/right while these must more seriously pull the craft down on that side which makes the other side lift way more and prop ventilates.
The hull shape might have worked if the motorpods where deeper and more to the middle and a mid tow point on a boom.
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Yup, starting with a conventional tow boogie and then exploring would have at least been useful to us, I was really hopeful watching it that there would be a breakthrough on stability in rough water
Interesting design with a roll bar.
This shape is close to what I’d do if I had the means to shape a custom hull.
Footage of hull shape here
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I wasn’t happy with my first version so ploughed ahead with a more refined one. It is still based on a soft surfboard but these were the changes
- I better shaped board. It has a wider tail and a flatter rocker
- I was using 17” masts. Ice extended this to 20”
- I changed from a fixed two blade 3d printed prop to a folding 3 blade prop using aluminium printed copies of the genuine foil drive blades that were provided on here.
- I moved the mast location to be very near the mid point of the board.
- I upgraded the remote from the Bremote v1 to the Bremote v2
These changes made a huge difference to the performance of the tow boogie. I’m really happy with it now. It feels much more balanced and efficient and the run time is considerably longer. The ESC log shows a significantly lower amp draw. I attribute this most to the props.
Here are some pics
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Here are a few clips put together into a short video.
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This is great to see and watch. Is there a specific benefit of a folding prop over a fixed prop for a Tow boogie? I’ve been thinking about this, a benefit of folding is that they could be used for other applications (Foil assist) where streamlining is important, but then a fixed prop will act as a better ‘anchor’. Probably very minor considerations, but keen to hear your thoughts.
For a tow boogie application, I don’t think there is a need for the blades to be folding. As you say - they are great for other applications like a foil assist.
Also, I haven’t seen an Axis 19mm mast to 6384 Motor design yet, is this your own design?
For anyone that struggles with torque roll on mono motored boogies Ive had good performance with this. My hull is a soft top board with finboxes so I 3D printed this foil.
As it creates lift on the right side it counters the forces from the motor. I imagine the surface itself also counters roll.
It’s a bit oversized because now it provides too much lift and when riding fast on the left it almost flips left instead.
Earlier I tried trim tabs in different configurations, angles and sizes and it worked ok at lower speeds but at higher speeds it was too much drag and just scooped water and when the boogie (and trim tab) reached a certain angle it just stops working since the tab isnt paralell with the water it flips suddenly.
A cool thing is when Im in a certain position behind the boogie the right side stern completely lifts out of the water and the boogie is on foil too 
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Even with dual differential motor my boogie will flip if I turn it too fast at high speed, perhaps this could also help with that?
I have the feeling that the solution to many of the tow boogie lie in some addition of foils
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Very interesting, I wonder what would happen if you added some curve and angle to the “foil” you have created, so that the more it tips over, the stronger the correcting force, that is the concept behind boat foils
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Im designing V3 right now and gonna try a fully curved one, from strut/mast to foil.
The one I shared is V2 and is angled up about 3degrees.
The only flip I encountered with V2 was in choppy conditions, the boogie launched off a wave, fin in the air and when prop caught water it grabbed and flipped.
V1 was very DIY lol, a bent cutting board with a surf fin bolted on. It was longer and angled up too but it caused the wingtip to breach when riding on the left side and at speed caused spray.
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Probably but Im thinking it would cause a dual motor boogie to steer and/or lift in weird ways due to no torque roll when both props are balanced?