When we mine LTC or novacoin or something like that, this shit doesn't really matter at all. The problem is these coins that we find blocks for in minutes or less.
That's not addressing what I don't understand though.
If we find a block in a minute, we don't necessarily move to another coin.
IF MinerAvgShareTime > CoinMiningTime THEN Profit = Lost
IF MinerAvgShareTime < CoinMiningTime THEN Profit = Gained
Are there many instances where we are only mining a specific coin for a minute or two? I haven't paid close attention to the total duration of each specific coins, but I've been pleased with the overall results of this pool and my hashrate is less than 1MH/s
Ok, i see what you are confused on.
We keep talking about when we change blocks, but the same thing happens when we switch coins, too. Its just that since that happens much much less, and is part of the secret formula of the pool, its not worth mentioning really. Yet, lowering diff helps optimize it just the same way.
Without seeing the secret sauce, the best way to tell if we switch coins is to just listen to your cards throttle down. I don't think it happens too often, maybe 5-10 minutes sometimes but I am just guessing... i know I have been in my office for hours and not heard it before as well.