Ugh. I know it's legit according to Webster's, but using the same appellation ("pro") to refer to those TB'ers with serious jazz cred (Fuqua, Parker, Sherry, Warburton, Fitzgerald, et al.) as well as to a self-acknowledged hobbyist who requires "more than a second" to parse a Dbm6 chord and who writes out bass lines to standards and then uses them on the stand kinda dilutes the meaning of the word for me. I know from your demeanor in this discussion, Mr. Hunter, that you won't take that as an insult whether I intended it that way or not (I did not intend it that way, by the way). There's no value judgment to be made about "being a pro" or not, obviously, but let's consider the subtext before tossing the word around.