Toroidal Propeller Pack

I found the Ultimate Propeller Launcher and got it up and running, but found the propeller underwhelming. There is an option from someone else for a toroidal prop, but there is only one option. I've always wondered about the diminishing returns on blade number and size, so I have a made a ton of sizes to test our what might be these best option.I've got various sizes at 100, 140, 180, 220, and 240 mm widthas well as different blade counts for each, at2, 3, 4, 5, 6, 8, 10, 12, 16, and 20