Important note regarding stat charges to boost into the next Tier
Just as stat charges don't immediately show you are in a higher tier, when these boosts get used up, they also don't show you come back down. Therefore, if you are stat boosting to Tier up before the 1,000 game reward, make sure to boost each guy's stats for at least two games or so. Otherwise, after game 1,000, you may show the higher tier, but be in the lower tier, and get rewarded as such...
-Snake


But if you want to save them, I do believe you can LOCK them up and they will not show up on that training screen.
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