Regarding the topic of mounting a non-Fliteboard mast to a Fliteboard:
I’m in contact with a guy in Portland that might be able to make a custom one-piece adapter to mount an Axis mast to a Fliteboard. The part would have a collar for the Axis mast and will eliminate the need to use an Axis baseplate.
This will hopefully save a lot of weight.
It looks like the cost is going to be around $200 and he might be able to do versions for other mast brands.
Let me know if anyone else is interested in such an adapter piece. There might be some economies of scale advantages for making multiple pieces.