Ah yes, I hadn't thought of that, I suppose that would make it a bit harder to do some of the more complex formations with no guides.
And ouch, zeroing out sounds rough. For those of you in this thread that did indeed judge shows, what were some of the lowest scores you gave out or saw given to the corps? Either in your caption or just overall? With the more modern build-up system, I haven't seen many scores lower than the mid 30s, and even then it's rare.