Donny, I think your definition of a PRO POWER SINGLE is accurate. I also think that most of us here consider YOU to be one. Now I don't presume to speak for Fran (he can do that perfectly well for himself), but I think he was just poking a little fun at you, as using the term to describe ONESELF could be off-putting to some people who might view it as somewhat immodest and perhaps having an exaggerated sense of one's self. In other words, it's perfectly fine and proper for an AGENT to use this term to define/describe an act he/she is trying to book, but I'm guessing very few 'pro's' describe themselves that way in casual conversation. JMO, though.
chas
My intent wasn't to be egotistical but more of a reference termonology to some who never heard the term used before in the business same as you would a DUO, TRIO, QUARTET, etc, as there are also single acts that are NOT Power singles, nothing wrong with that for let's say a acoustic guitar/singer in a coffee house, cocktail hr, or strolling table side accordion player, etc, it is just a different title to define the act to a perspective client nothing more,.
have a wonderful day.