Dont know if this helps - but whould share you my expierience - If I register on a new Advertising Network I remove the ADS I dont need/whould change (so that there are free ad space(s)) - OK the page looks than not complete for a while *loL* cause a banner is missing -  but if  the "auditor" visits your site and see - wow, there are only decent 3-4 ads and a nice space for my advertisers free .. that site can be accepted ..