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Once again I'd like to point out that the idea of this experiment is NOT to get the best pool or to say which pool has the best payout. The main idea is to show what kind of payments miner can expect and how often these payments arrive in miners pocket. And also to get an insight about how close to ideal theoretical payouts we can get. Regarding switching pools - one thing that is already showing up is that switching pools can lead to serious profit loss, especially if one is switching between PPLNS pools.
That depends on the pool.
You need to understand how their payout works to determine if it matters if you switch and determine when you can switch.
That also affects how much you are paid after you stop mining, which the information you are posting completely ignores.
I'd hope if you think you can provide useful information that you actually fully understood the payouts of each pool you are comparing.
At the moment it would seem you don't.
In the case of my pool, switching makes no difference unless we find a block worse than 500% diff (which has only happened once so far) and of course you also can't know that in advance so in reality switching pools makes no difference at all at my pool.