Mike this isn't a rep, it's a techy with the reports in front of their face.

You have to remember that not all advertisers use the javascript to track conversions. So if you send 100 clicks maybe 5 will have the code or maybe 50 will have the code. Depends on the segment you are in. Some track conversions by somebody buying something, some by putting in an email address, and some by somebody calling in on some number. It's really up to the adveriser.
The area that I have domains is very specific, all of my domains I have owned for at least 6 years. My traffic converts, has always converted, but then again I own only 50 domains.
Donny