conspiracies - 8:06 am on Apr 23, 2013 (gmt 0)
I didn't even know there is a 970x90 banner. Since it's quite new, and advertisers haven't added the new size yet, they are serving 728x90 instead.
You're right. 970x90 fits perfectly on my site that's why I thought of using it. Since their banner/image ads only are blank, I ended up not using them.
I'll give them more time til I'll use them again.