I am running muscle right now in the US and in CA. I'm wondering what kind of cpc's and ctr rates some of you might be seeing? I am wondering if my ad is aggressive enough. So far I am seeing about $0.37 - 0.58 cpc depending on interest. How far off am I? Relevance is at 8 so I think I could do better. If any has some tips would love to hear them.