Interestingly enough, they've redone the UIL sheets recently. I wasn't aware of this, unless they're the same changes from a few years ago.
Lots of conversations with successful directors, some of them genuinely insightful. There's definitely been an infusion of some of the elements we see on the BOA sheets. Obviously, I like these changes, but some members of the "old guard" might not be fans. To my earlier point, some of these guys do mention being a bit apprehensive about judging some of the elements they're less familiar with, like guard. My recommendation would be to head over to WGI's site and take a peek at those adjudication sheets, get a feel for what they look for in a show, get a feel for what A class, Open class, and World class skills look like. Heck, pop in a few basic guard instructional DVDs, if you can find the time. Obviously, it's beyond the scope of the UIL visual sheet to go into great depth just on the guard, but even just a little bit of knowledge will go a long way in helping you communicate effectively (and specifically) as an adjudicator -- not to mention helping you rate the relative excellence of the groups in that particular area.
https://www.youtube.com/watch?v=3vnJFxJuSCw