You will get 30% more by selling Your coins manually and its because theese pools don´t take into account market depth, so while autotrading pools mine WDC with profitability .007 BTC per MHS (because it´ll be easy for them to sell all coins at low rates)
'30% more' sounds great if your time is worthless.
for me, what you say makes sense, but sounds like a pain in the ass. i am a miner, and not a daytrader. if you want to daytrade, install wallet trojans, and deal with cryptsy that's your game. I sure as hell don't want to follow each and every thread in the altcoin forum to determine precisely when a pump-and-dump is occuring. i'm not built for daytrading, and everyone has to figure out where their strengths lie.