OK. I watched the Tommy Emanuel video. Using a Shubb capo, I press the capo into place midway between frets; that is press the capo firmly against the strings prior to snapping the capo shut. It works! The low strings do not require re-tuning. AND who says you can't teach an old dog new tricks. Thanks all for responding to my original post.
Oh, and by the way, the Tommy Emanuel technique of putting pressure on the strings over the sound hole after placing the capo doesn't seem to do a cotton-picking thing.
BUT the aforementioned "trick" seems to work for me.