I think some dogs bite harder from fear (when green) than they do when they're schooled.

I also think some dogs don't bite as hard when they're controlling, than when they're going for the finish. In other words, some dogs use their mouth as a "tool" to hang-on, not as a weapon.

Kind of like some boxers jab & hook, at a lighter power effort, but will be selective as to when they will let a punch really fly. I think this is the mark of a pro.

I read a story on how Gr CH Lionhead showed a devastating mouth in school ... but then he stopped trying to bite so hard "all the time" when he was experienced ... and would just ride a dog out for the most part ... and then would really bite hard when he felt it was time to do so.

I think dogs who "try their hardest" to do anything "all the time" will get tired and used-up much quicker ... and almost invariably will be duck soup and easy money for the seasoned dog, who learns to pace itself, and who only really pours it on "when the time is right" to do so.

Jack