How to master VSL’s?

I am currently going through “Breakthrough Advertising” by Eugene Schwartz. Difficult, but great book. However, I feel like it is more relevant to master VSL’s because, you know, video content and stuff. It seems to me that mastering VSL is a better path

I wanted to sign up at Clickbank, sort offers by gravity score and then see their VSL’s. Sadly, Clickbank doesn’t accept my country. Back to the dra ...