Pre game dunk

[ma_ref]

I'm aware that dunking or attempting to dunk a ball during a dead ball (including pre-game) is a T on the player, indirect on the coach, etc...but my question is whether or not dunking/attempting to dunk at a basket which is not part of the playing court also applies?

Example: I had a 7th grade boys game this weekend in an elementary-school gym which had 6 baskets (2 on the full-length court, and 2 on each smaller court if the gym is divided down the middle. The baskets on the smaller, gym-divided courts were lower to the ground than the regulation baskets, thus making it more appealling to the kids during warm-ups to try out their Jordan-esque moves.

During their warm ups, 1 kid dunked on his way back to the end of the line. I let it slide, as it was wreck ball, and didn't include one of the game-used baskets. But were this V level play, I'm wondering about an interp on this? I thought the intent of the rule was to prevent unnecessary damage/bending to the baskets used during the game, but if these baskets were on the side and not used, then I'm wondering if this applies. T, yes or no?