I heard about this recently and decided to give it a try. The profitability charts looked really nice, for example. Anyway, here's my
24-hour review of Hash Cows vs. Litecoin. I'm going to keep it going for another day, but so far things aren't looking all that good compared to other mining options.
"every time they switch coins, my miners all seem to swap over to my secondary pool for several minutes"
did you use cgminer <= 3.5.0?
if not, you should redo your tests.