Here are the results* from a 100-click solo ad I bought from Marc Gray. You can find more reviews in my solo ad directory.
Clicks bought: 100
Clicks received: 138
Optin percentage: 35%
% Tier 1: 62%
Cost Per Optin: $.69
You can buy a solo ad from Marc Gray on Skype at marc.gray1888
*These are the results from my squeeze page and sales funnel. Your results may vary from mine.