so what should regular swings for NL be? around 4 or 5 the max buyin?

what about fixed? like 30x the BB?

multitabling obviously amplifies all of this, so let's assume we're playing 2 tables, and we're calculating swings PER table. that way we're not entirely focused on the game, but enough that we can still make money.

once you're playing 4 tables you're not playing the opponents anymore, you're just playing the cards. and that will cut into your profits.