If the method actually does what your backtesting shows, start with one contract and as account grows, add more contracts. Before long you will be doing 100 lots and couldn't care less about selling it or talking about it to anyone.
Just like all the vendors who sell day trading methods, if it is so good, they should be doing 100 lots plus. Why mess with the public for a lousy $1,000 to $5,000.
People are so gullible for the thought of easy wealth.