Ownership of a quad doesn't automatically mean membership with a CBO is a sure thing. Just as buying an airplane at a hobby shop doesn't mean the pilot will join the AMA or a club. But we do know for certain that the AMA membership has increased (5th year in a row), and MR pilots are part of that rise. Even a candidate running for the AMA office on an anti-MR platform has confirmed about 10% of the membership note MR as their primary interest. That's about 19,000 people. Folks can dispute those numbers are deny all the want, but they are there.