I think these days, especially with high profile botting like DT2 bosses, CG, ToA, etc, what a lot of people are doing is just botting as much as they're comfortable until either the temp ban (because for most built up accounts it's a temp ban first), or they achieved what they set out for.
It's a pretty difficult question to answer though. Historically I would have recommended botting "human" hours, and trying to emulate a human playstyle. But these days so many people get away with insane botting, I don't know how relevant that advice still is.