Originally Posted by Answerer
Font of Inspiration is usually more important for multiclassed factotums than it is for single-classed ones. When you're single-classed, you get more natural Inspiration Points, and really, a straight Factotum does not really rely on Cunning Surge nearly as much as a multiclassed, or more significantly, a gestalt one does.
Whether "factota" is correct for the standard usage of the word or not is irrelevant. Just like "maneouvre" is incorrect when referring to anything in ToB.