Okay, I’ve had some more time to goof around, and I’ve taken to riding on the tail of my big board such that the front maybe 1/3 is out of the water, and this makes for some pretty good weight shift tight turns and such. Still needs to go a bit faster before I’ll call this successful for what I was wanting - which was more than just cruising at the same top speed as I can paddle already (4-4.5 mph). It’s great I can go that speed for an hour just hanging out, but that’s not what I’m going for. I did have it on the board motor on top one day when the wind was likely to be tough to get back from my island circuit, as backup in case it was too hard, but I stuck it out and paddled back. But nice that I could have just flipped the motor under, and for sure cruised back home.
I have a few ideas on new prop designs I hope to work on (build) in the next few weeks which could go either way, works great and I go faster, or just a waste of time. If it works it is likely patentable. 