It's not faulty logic. If you shoot a basketball and it keeps hitting the back of the rim, you know you should adjust by lightening up a bit and the ball will drop in the middle of the rim. If you keep hitting the front of the rim, you know you should adjust by putting something more on the ball.A miss hit on the TOI line can tell people something they're doing wrong, but a miss hit on center can't? That's pretty faulty logic. Now, you also must include deflection/squirt in the hit because it isn't center. Whereas, if you're off a hair from center, there is minimal difference, but being off from off-center could result in a larger difference if it isn't towards the center.
When it's all calibrated, how can you say that you're not spinning the CB? You're either hitting it center or you're spinning it, there's no hitting it off-center and not spinning it.
I could just as easily say that center ball is best, because if you're off to the left, the cb squirts to the right to negate the effect and vice versa. You don't even have to recalibrate for that.
Similiarly, with T.O.I., if on a right cut, you keep hitting the left side of the pocket, you know you're not putting enough inside on the ball and if you adjust by putting on more inside, the ball should go in the center of the pocket. If the ball keeps going in the right side of the pocket, you know you should adjust by putting less inside on the cb.
When you're off on a center ball hit, you don't know what you did wrong or how to adjust to rectify things. At least I don't.