I'm not married to "6". Obviously if experts were brought and said the perfect number was 4 or 5 or 8, I'd be all for it.Why 6? Why not 8 ? Why not 7 ?
Can you show me the statistics that point to 6 being the optimal number of interchange to ratify that shocking stat ? You can't just pick 6 because its an even number and it's less than 10, this rule change would have the ability to completely change the make up of the game. There needs to be some research done in regards to its effects on the player physiologically and psychologically.