Expensive, yes, but in the end there's less to fuss with and nothing gets in the way. It works for me because I use the same units on my F-27, stuck to each side of the cabin so I can see/access them from the floats.

But, I have changed my N-20 mast base to the new one that locates the rotator arm to the base. That would make one of the tacking systems shown viable, so I may consider that. It still looks like something else in that area of the boat to get in the way.