When you clone your campaigns, you might want to try setting up the cloned campaign with different CPC's. I noticed that your CPC's range from .10-.20. If you have a current campaign running at .10 and want to clone it, try setting up that campaign with a .05 CPC, or .07, etc...
Sometimes, strange things will happen. I started off a couple of my best campaigns with .05 & .06 CPC's in the beginning, even boosted the CPC to .10 in a fit of frustration at the time. Strange thing now is that I got my AM to LOWER my CPC's to .01, and traffic started to skyrocket for some reason.
When I first started those campaigns at the higher CPC's, I was averaging around 15K-18K impressions/day per campaign. Now, with .01 CPC's, those same campaigns are averaging around 65K-80K impressions per day each.
Definitely worth a try with your traffic source.