If you mean preflop, then any reasonable player will use the same opening size with all the hands, they want to play. If you use one size with your best hands and then another size with all the rest, that will make you really easy to play against. Small sizes are pretty common in tournaments, because there is a lot of value in reducing variance. Personally I typically dont min-raise, until the effective stack is 25BB or less. There are also some players, who prefer to make it 2,1 or 2,2BB, but really it makes no particular difference.
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