If you don’t know the conversion rates on your optin page, then setup split testing. I recommend Leadpages for setting up your optin pages because they have built-in click tracking, A-B split testing, and they let you drive unlimited traffic. Of course, they have some beautiful optin page templates that you can edit very easily using their click-click interface.
This article is by far one of the most interesting and fun articles that I have read in a long time. I say fun because the points mentioned here are simple and easy to read. They are not long passages that speak a lot and tends to lose focus. On the contrary the points mentioned here were in short crisp sentences that did not bore me but made my read a pleasurable one. Thanks!