Testing new ad units decreases EPC

Anyone ever experienced this?

[frakilk]

I have a few hundred new pages that were AdSense-free so I decided to test some new ad units on them. I quickly realised that the ad units were not going to work so I pulled them off again. Now it appears my EPC across the rest of the account has decreased by a third. Have I "rocked the AdSense boat" by testing these new ad units? The number of impressions tested was only a few hundred. Thanks.

[ken_b]

Have I "rocked the AdSense boat" by testing these new ad units?

I haven't seen that happen on my site. I switch ad sizes and styles occasionally just to see what might happen and other reasons and haven't seen any after affects on EPC when I switch back.