Folks, I want to thank everyone for their interest and reply to my thread. For me, it's become a question of efficiencies, meaning I'll forgo the free and repeated balance checks at the dealer and pay for a proper analysis of my tires as long as I come out of it with a properly balanced set of tires or a document that says tires(s) x,y or z are defective. That's where "reputable" comes in. But the consensus seems to be that a road force balance is what's needed.
Like everyone else, I don't have the luxury of repeated visits anywhere to get this sorted out, and like another member said on another post about the vibration issue, it's the tires. I have to believe he's right even with my limited mechanical knowledge.
Anyway, lots of ideas for me to sift through. Thanks again.