Great Advice Aaron,
I am very guilty of doing small launches where I did little testing and never gave out info on conversions which I knew a while ago was my biggest mistake.

Do you have any ideas on how to do this with a membership site. I mean I understand you need to test but if you are giving out new products monthly then you want to get as many people as you can in the door the first month so how much time would you think is good for testing.

Mike