Thanks for all of the input concerning this topic. Looking at the number of posts it appears that I wasn't the only one baffled.
I am pleased to say that my remotes are working as expected while piped through my Niles (SS-6) 6 pair speaker selector switch. Each remote set of speakers is fed from the Niles and then to an impedance matching volume control. I first set the volume controls fully clockwise (wide open) and then tweaked the "Max Volume) on the V-867 up to just below the distortion level. I then left all of the volume controls at 50% which provides louder or quieter sound at the remote location and also allows the user to selectively turn the sound off at each location. The one button "Party Mode" is great!
Since my last post concerning this project I have ordered a Onkyo M-282 2-Channel Power Amplifier to eventually supply the remotes and will then revert the current set-up to Presence. The Onkyo is a bit expensive and has a larger footprint than I would like, but it will certainly get the job done via the line level outs. Since this unit has two outs I may just go ahead and supply a set of remotes in the garage via out 2. With my current set-up, including the Intel HD WIDI adapter, I have so many options that I'm running out of ideas on how to use it all. I am very very pleased with the Yahama V867
I've also noticed a few postings concerning programing and using the Harmony for this installation. I'm having no problem with mine, but have had it quite some time and am real familiar with setting it up.
The first of next week the Onkyo will arrive as will a pair of cooling fans with filters. I'm about maxed out in my "entertainment" cabinets and everything will be much happier with some filtered air flow. I'm going to install a new shelf, lowering the "hanging" center speaker to just above the Plasma TV. That will give me added shelf space and still allow the Plasma to vent. I'll then install the Presence speakers slightly higher and off the to left and right of the center.
Next step will be to document all of the settings on a spread sheet for future reference.
Again, thanks so much for all of the input; now that I understand it all it seems so easy. Funny how that works...