ohiohiker, rereading my own post, I hope it didn't come across as a flame.
I have some limited training in SAR as a Civil Air Patrol cadet land rescue team member (20+ years ago) which included basic tracking as taught by a few military special ops personnel. I try to keep up on my skills through reading and dirt time. I also have a BA in psychology.
That describes me also, except for the BA in psychology. We also learned tracking, etc. - in the Pine Barrens of NJ, no less.
From what I've heard, many SAR groups have now adopted "unconventional" methods such as man tracking and trying to get inside the head of the lost person.