I assume this mic will work with the MAESTRO. I hate to make assumptions. I was looking at the connection schematic, it shows a fast, up, down switches, I assume those are not connected in the MAESTRO.
Steve I looked at that illustration in the Maestro manual. If you go and check the Yaesu site for the connections on the MH-31A8J you will find some that don't match. If the up,down & fast are not used on the Flex Maestro circuit board, then everything is good. Thanks for the reply.