Our gym did it one year and even though these kids weren't technically put on teams, they still knew what level stunts they were doing and quickly noted what athletes and coaches they're working with, so they kind of knew even though they weren't supposed to know. I'm torn. It ended up being around 3-4 athletes on each "unknown team" switching back and forth to see where they were a better fit. One kid said they felt like a foster child being switched between two families, one they wanted, one they didn't, and both families treating her like an outsider. One parent felt their child was visibly working harder with the "unknown team" she wanted versus the one she didn't and said her child didn't have the maturity to realize that would work against her. Another parent said they felt the stunt group was visibly working harder with the one they wanted versus her child. Another kid said she was quitting if she didn't get the team she wanted so it was just prolonged drama. Another said she was already labeled as the weak link on the higher level team, and the lower level team was ignoring her because she was getting to try out for the higher level team. In theory it sounds great, and the coaches should feel comfortable they have the best fit possible for the team. BUT, even I caught myself favoring certain athletes from the handful being switched in and out, so you know coaches and teammates have formed opinions early on towards those athletes before the season even started.