UMA?
I joined the UMA two years ago right after they organized. I was a member for only that year. I think I received two or three fliers and some e-mails. I never saw a UMA sponsored event in my area (Oklahoma) nor did I ever see a "UMA FIELD".
All of the fields I visited and contests I attended required an AMA or MAAC card and that included IMAA events. If there are any UMA chartered fields in my area then it is a well kept secret (at least from me).
You also cannot fly at our field without an AMA or MAAC card.
In my case, I just could not see any benefit to belonging to the UMA. It may well be that this is just basically an insurance company. Nothing wrong with that and if it fits a persons (or your) needs then fine. However, since no AMA Charted club is going to accept a UMA membership in lieu of AMA membership and you want to fly at other sites or national events or IMAA events - then why bother???
Just what I think....
Dan