In reply to Justin Tadlock.

That's awesome. As I was re-reading my comment, I was thinking the exact same thing - to use something like 2-xl, etc. when adding larger text options and something like 2-xs, etc. when adding smaller text options.

The primary point is that this type of approach allows us to establish a universal base of standard sizes AND provide a semantic & seemingly limitless extension to those sizes as needed.

For, you know, those clients that want some 8-xs legal copy. ;)