I have been wondering about this, would it be better to just create 1 Adbrite Ad Zone and have the same ad code placed in all my proxies or create individual Ad Zone Codes for each and every single proxy?

This is how it seems like for me currently:
I just transferred back to Adbrite from Global and only had time to place 1 Adbrite Ad on one of my proxy due to lack of time.

Today I got 83,963 impressions, 2 clicks and $6.60 from just 1 proxy alone.
Few days ago I get about 130k page impressions with only about $7 daily from all my proxies. At that point I used the same Adbrite code created for just 1 proxy site.

With these stats in reference it makes me wonder whether would it be better to create individual Adbrite channels and codes for each proxy site? It would seem that by doing it this way with more channels it increases exposure to more advertisers and thus lowers the pass-through rate. From what I understand of pass-through rate it happens when there is no current advertiser advertising on your site which would lead to a banner saying Advertise here! ... Correct me if I am wrong.

Let's hear from you.

Hmm I've tried to create more zones instead of one but it past only one day and I dont see any difference. I will keep you updated if I see any difference

I tried 2 Ad Zones per proxy. The result is I am now making $2 lesser daily with more impressions

Some people said placing 2 Ad Zones would increase revenue 2 fold. I would like to justify that as it seems I start bringing lesser revenue after I placed 2 Ad Zones instead of 1.

I am too making more $$$ by putting two adbrite adzones in my proxies