I dont think the hold back thing is big deal but I really dont understand it.
In school ball all the better kids want to play up. The 8th grader want to play JV. The 9th grader wants to play Varsity. I get it.
When you go to travel parents will take a top kid off of a 2020 team reclass him and now play him as a 2021. Even if you do change grades why are you bringing him down to a lower level? Let him challenge himself and drop him later when it matters.
My son is on a good team as a 2003 playing in 2021. If I were to reclass him I would expect him to dominate. If I double dropped him and played against 2023 I would expect him to crush other kids. I wouldnt pound my chest saying he was all that because he scored 5 against younger kids. I certainly wouldnt expect him to celebrate.