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He called with A2o... Try to change his calling range to 44+,A2o,A2s+?

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If the BB's calling range is 44+, A2+ and the others' calling ranges are still 66+, ATs+, AJo+ pushing is +0.3% If we make SB's calling range 44+, A7s+, A9o+, KJs+ it's +0.2%.

That means it is +EV, but it's probably better to fold. First of all they might be even looser than this, which makes it -$EV. Secondly, at low buy-ins people advice to push only with +.5% or more, because your opponents are bad and will make plenty of mistakes.