Thanks Cyrus. I guess I really should not have written any thing but the word SILO!
The entire first part of my discussion item was for background and example. I simply stated that I was "unsure if Google treated them the same". My question is discussed in the third paragraph and located in the fourth paragraph (if readers would pay close attention -- tip, a question mark at the end of sentence means it is a question) and is whether or not anyone has real, tested, experience that would indicate that it makes sense to Silo for the two terms by creating two separate silos.
That said, I have gotten the opinion from Danny Sullivan directly that he believes (and I'm paraphrasing) that Google has long treated the two as synonyms and that there should be no need to silo.
And (to your points Cyrus), I agree as long as the pages have unique content there should be no "penalty", which I always do anyway. That is simple SEO 101, but I include it for future generations reading this thread