Here are the results* from a 100-click rotator solo ad I bought from Paul de Sousa. You can find more reviews in my solo ad directory.
Clicks bought: 100
Clicks received: 149
Optin percentage: 38%
% Tier 1: 84%
Cost Per Optin: $.58
You can buy a solo ad from Paul de Sousa at his website
*These are the results from my squeeze page and sales funnel. Your results may vary from mine.