Looking for some feedback about CPALead (regarding impressions/leads to profit)

I run a couple of websites and wanted some feedback about CPALead. Lets say that my sites got about 5,000 visitors a day, and out of those 5,000, only 30 decided to complete a CPALead survey that day.
Based on the average amount of profit you’ve gained per click (this goes out to the people that already use CPALead), is it possible to earn at least $30 from just those 30 visitors (assuming all 30 visitors are from the United States or UK)?
And if this question isn’t too invasive, how much profit do you usually make per lead?
Any feedback would be appreciated; thank you.

See original post by AmpleAlex