Dudes, it's not a load of bullshit. I tested 2 days Waffle, 2 days Clever and a day and a half ALtCoinPlex - got about .01 BTC on ALtCoinPlex for 36 hours with 8GH... Waffle and Clever returned me .04 - .06 for 8GH. It's still pretty shit.
If you look at dustcoin or coinwarz the profitable coin spikes are short-lived, and are few and far between. A month ago these sites predicted I would earn $2500 per month with my 8GH - now the highest paying coin will earn me about $1000 per month. None of these coins are spiking high, so there isn't huge profit in coin switching.
Additionally the price of LTC and other alt currencies tends to follow BTC, when BTC drops LTC follows. 1 LTC is about $15 USD right now. A month ago it was up around $25.
I went back to MC for ~ one day, 2 days ago, after a mistake in estimating the gains from the main graph. I "got" half what I got at Waffle in the last ~24 hours. I said "got" because everything is in unexchanged, and god only knows when and how much I will be paid. Take a look at pool picker, MC has been largely underperforming over the last 10 days. Of course3 you can stay there because you like it and there's no argument about that. But saying that all pools perform the same is just not facts, at least over periods like the last week or 10 days.