I hate to say this, but the SAR should be left to full time, paid professionals.
I've been involved with CAP, got up to Mission Pilot, so I do know from first hand experience that if my loved ones were in trouble, I want the sheriffs dept or the highway patrol out looking. Talk about a cluster.
The development of the kids (cadets) is neat and all, but there are other community orgs that do so as well.
Other than that- it's a government subsidized flying club undercutting the local FBOs. Your tax dollars at work.