Three types of traders

There are broadly three types of traders:

1.  the first type can look at a idea or concept and understand and make it work
2.  the second types are in search of perfection so the first thing they do is they find faults in any method, they back test to death and can never find things that will satisfy them. 
3. the third kind are clueless. They do not understand good from bad. Everything to them is  Greek or Latin.

There are no perfect methods. You have to make things work. Add some discretion, add some judgement and you can make  it work.

If you take that attitude you will find hundreds of workable methods.