[aislephive]

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So I wanna take an aggressive shot at 2/4 with just under 20 buyins.. is there anything different between the 1/2 regs and the 2/4 regs, or is it like the jump from .5/1 to 1/2 (more aggression, but not necessarily smarter aggression)?

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There is definitely a decent jump in the skill between regulars, but if you're doing well at $200nl you should be ok at $400nl. 20 buyins is really shallow though, if I were you I'd perhaps take a 2-3 buyin shot and see how it goes, dropping down if you lose the buyins. I think your best off following GD's advice and just stay at $200nl for a little while and grind out more of a bankroll.