The more information you have the better - but some people are successful without support software. I don't use it all the time. Sometimes I feel like I over-think decisions when I have all that information at hand.
A lot of the time I have the support software running so I can look up players if need be, but don't have the hud actively running. I don't know. I feel like my reads on players are better when they're not influenced by software. With that said, I never play online without my software running and recording everything.
I'm more of a live table player though, so take this how you want.
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