I received the vouch copy from the op, it took me 10 minutes to go through the ebook, the method is solid. it will work but it will work best on stable coins, you need atleast $50 to start with OP's method to make good profits. I believe dollar 10$-20$ is a bit low, this method can be scaled to much higher profits. Also this method is quite common if you are a trader but if you are a starter then this can help you a lot. Good luck OP with the sales.
I will try to implement this method in the coming days and report the results here.