I've created an optin form for my site which goes a little like this:
BE THE BEST YOU
If you find it nearly
impossible to gain
weight, let alone
muscle - then this
transform your life
JOIN THE NEWSLETTER NOW
[Join for FREE]
My niche is helping "hardgainers"/skinny guys build and maintain muscle.
My target market is guys aged between 18-30.
Now you may look at it and think "who the f would sign up to that?", and that's why I'm asking for opinions and advice on how to improve it.