I found this posted from Rik on FB. "AI#7M-B Drive unit. These accept a “Mercury Bravo” style propeller." This was from 2022. I'm curious if anyone can confirm using this setup? I'm in the early stages of the Arneson swap but I have a huge selection of Bravo one propellers...

I never ran bravo props on my Arneson asd7 kits , but when i asked Rik about the possibility of running them he said different prop shafts and thrust tubes were needed . I have a 34" prop center line and any props I tried that were less than 17" dia were very difficult to get on plane and all my bravo props were around 15.25 dia so for me they won't work.

Um yeah, not using but coincidentally just seen this he posted June 18th I think it was, on Farcebook.
Don't know wtf I'm doing with Farcebook links so uploaded the picture.

Yeah I called Rik to discuss some 7s for a bravo conversion boat were working on and he explained that in most instances you want the bigger prop built for the surface piercing. I do have one set of 16" Herring 28 5 blade that are Bravo one hub but even these probably wouldn't take full advantage of the "surface".