For those of you who have suffered the streaks of River Rock....I was able to get a decent looking wall by using a sea sponge to do the third coat. It doesn't matter how much you put on or in what patteren you go if you use the same paint. The streaks pretty much disappeared.
I also took the empty cans back and demaned my money. The paint mgr said no way. When I asked to speak with the store mgr, I got my money back.