gosh, mu, I can see why you're puzzlepated and bewilderbeast by all of this. let's see if I can help you out the door. CK did give a colonel clue and jo gave a wonderful recapitulation of the question, but then we had some minorly obfuscatory digressions until Yoda came along with actually the answer, which I, ab intra, glossed. as to why we're on the same *puzzle, that's 'cuz I haven't deigned to post another. and maybe i won't. :û