The issue with this is the battery will be enabled before the leads are plugged in so it will spark when connected?
Correct, but i plug the cables into the battery before putting it in the right place.
Board looks great. I am sure you will love the lower volume.
What do you expect the total weight to be (incl electronics, mast, battery etc).
So this will stay the same i guess, maybe I will manage to come under 23kg but not much less. Thats sadly my assumption because the PCCF insert was simplified thus heavier in this case and also one more layer of carbon fibre.
Cool. Sounds good, that is very low!
Very curious about the final look.
Next step is going to be a smaller wing, a Curve XXL is VERY big.
Im riiding a Curve V2 M (1000cm²), and my next foil which is 650cm² is on its way.
You can go much smaller with efoils, and if your board is light (like yours), you will have no issues with smaller foils. Also, for your purpose, of riding it in the sea, you will love a smaller wing and a folding prop (if there are enough waves)
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Sooo which foldable is the best for 65220? 
Flipsky has one for 50euros?
At that price its definitely worth a try. Unfortunately, there arent many other options.
Not sure if a Waydoo would fit? There previous flyers were 12mm, not sure about the evo.
I’ve also found this one:
https://easyfoil.de/de/products/easyfoil-folding-propeller
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@HOF i was going to suggest @Flying_Rodeo, but i could not find their website on google. Maybe they’ve closed down the shop? I have one of their folding props on one of my efoil masts with a 65161 motor.
You might also try finding a Lift folding prop and modifying it to fit the 65220. You seem to have a good workshop so maybe you can get it to work.
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FR went out of business, unfortunately.
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No he never, he had a kid and didn’t have the time anymore so sold the company. I’m just not sure who actually bought it.
Second battery is done, this time I used P50B and I can tell there is no difference in 14s5p pack vs the 50S - except the price 
Both provide around 50minutes of ride time.
Some pictures from the second board in process and over-weekend testings:
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Whoah. You have the original flying rodeo board / mast. Cool! Don’t see those very often.
Hi Hof, and all,
You are using Flipsky motor 65220 which is longer than 65161, did you reduced the distance of the mast from the the rear of the board to compensate?
What is your distance and are you noticing an extra lift effect due to the additionnal length?
Many thanks
I did not really think about that, I just copied the Flite ultra dimensions and ratios and thats it.
I did cut into the mast more than “normally” to compensate the length of the motor.
Overall when others tested they all said it is enjoyable and very good also performance wise. One point that stands out is how far back can you stand and how good you can ride at the stall speeds of the foil, really enjoying the Gong V3 line.
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Many thanks for your feedback.
Not sure to get it when you say : “One point that stands out is how far back can you stand”
What do you mean? No nead to move to the front when increasing at full speed
No, of course you have to, but the setup feels more comfortable riding more backwards than usually. With speed you have to move forward but not as much as you would think. My assumption is that the foil setup has a bit of upward AOA on the stab and with speed the board tends to lean forward by itself. So once again, wery happy with my foiling setup.
Also on 2 blade FR Alu prop i managed to get 4,2kw out of the motor - 105kg person was able to get lifted.
Nice work! Would you share your CAD files of the mast? How deep did you cut into it?
Hello Hof,
I am looking at building my second board and wanted to take a similar approach to sealing the main board hatch.
What approaches to sealing did you try? I am looking at a flat EPDM foam gasket, but can see you are using O-ring cord.
What size did you use? Does it perfectly seal or do you get some water leaks?
Hello,
here you will be able to find all the files to make one yourself, including motor mounts, cone, end cap, mast adapter plate etc…Fits 65161 as well.
Regarding the sealing of the mast adapter plate, simple aliexpress o-ring, no leakage.
Regarding the main battery waterproofing I glued together a 10mm x 10mm rubbery like material that i bought at the local hardware store. It has closed pores. No leakage whatsoever, a bit comes in when opening the hatch. The pressure from 12 screws is sufficient 
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Heya HOF
I’m a long timer lurker trying to get moving from design, to a build. Really like the under-board-battery modular design you have used. Using a 65220 of course helps a lot, by eliminating the need to find a place for the ESC to go.
Now you have a few kilometres/hours on the clock, how are you finding the equipment? No problems with the 65220, Daly Blue or anything else? Still happy with the 14S5P choice?
Thanks also for providing the Printable files - nice touch uploading STEP files 