Battle Tested Techniques

How do you know what you learn will work in  reality. There are many instructors that will tell you that their systems is this and that. Some will criticize other systems and say that their system is superior to others. Well don't go for any of that if that person can't demonstrate to you that they are telling you the truth. In order for something to be effective, you have to be able to apply what you learn against a resisting and non-compliant opponent. For effective fighting technique you have have to have fighting experience. You don't have to go get in a real fight (it would help), but you have to spar with resistance. Don't get caught in concepts. Learn from those who have real life experience applying those techniques, not just those who have belt and certifications and no fights.