connects to the most profitable multipool
I was actually thinking of making this.
My understanding is that this would undermine the components of PPLNS that make it successful. Basically, the longer you stay with one PPLNS the more you get and it can take over 24 hours for the full profitability to be reached. For such a thing to work it would have to be able to evaluate and project profitability encompassing time spans over 24 hours. This would be really something. For now, it's just as well to use something like pool picker. Just watch it day by day and see how various pools are doing and then make your decision or change up based on weekly trends.