Well, there is an add-on to the August 8 group search. One couple that searched the SW quadrant of the mapped rectangle found a paper towel used as a handkerchief about 30 feet into the dense forest north of the cleared path of the powerline/pylons. They passed it off as something left by prior searchers. But on Sunday they thought it over, and on Monday one of them returned to pick it up and bag it. It was delivered to me, and then the police picked it up promptly, along with a map of the exact sight of recovery marked. It's a long shot, but for now, the results are something to look forward to.
Scotland has a charity organization called K9 Search and Recovery. I think it was through WS that I first heard of them. It's been a slow path to get in touch, with their family illness, and their day jobs. But it looks like there will be at least one person and is dog coming on Friday to sniff for remains. It sounds coarse to call them "cadaver dogs", but that certainly separates them from the dogs that track a live person's scent trail. Here is their website:
http://www.k9srs.co.uk/ They are totally separate from the police.
Thank you all for the encouragement! It really helps when things seem to grind too slowly.