Masters Redmond and Parlati have a lot more experience than I do, but from what I've seen locally, getting an event like this together is a *bear*, primarily because of the insurance.

When someone gets hurt, what recourse do they have for medical treatment? What is the long-term consequence of their injury?

When the lawyers get involved it gets to be very expensive to put this together.

As for 50 and 60 year old, non-professionals competing in any athletic event, much less a contact sport... God Bless You, but the human body does have its limits. As much as a warrior anyone of us may be, physics is physics. I don't think anyone over the age of 50 should fight in a full-contact, no-equipment event. It only takes one shot to have a life-changing injury.