I find myself wondering when UIL will step in and fix the ENORMOUS loophole in this rule.
If a 2C MS plays a piece off the Grade 1 list, and a kid plays it in 8th grade, it is PERFECTLY LEGAL for their 2A/3A/4A/5A NV HS band to play THE EXACT SAME PIECE the next year.
Ethical? No. Best interest of the kids? Nope. Does it happen? You bet it does.
I had this happen a few years ago, only the non varsity at the high school played one of the grade 2 pieces I had done with my CC varsity the year before. My school was their main feeder, so at least half the kids in the NV had played it before.