ewolf,

That statement there will discredit you from many a person's viewpoint. Second, you contradict yourself with that statement..."Open your mind" and yet "I am right and you are wrong"......

As for your procedure....I agree that it is good that you take the time to tune your bow but as several others have mentioned the center of the grip is not necessarily the perfect line for the powerstroke of the string. For example, most conventional single cam bows have their strings at an angle in the horizontal plane. Because of this, more often than not, the arrow ends up pointing to the left of center when the centershot is set correctly.

Also, getting left and right tears after centershot is set does not necessarily just indicate a spine issue. It may also be the result of other issues, some previously mentioned, such as fletching contact, torque, etc....

Some things to think about.