So this might be a dumb question and i'm pretty sure I know the answer, but can a Fighter choose the same weapon group more than once for his Weapon Training?
Every four levels thereafter (9th, 13th, and 17th), a fighter becomes further trained in another group of weapons. He gains a +1 bonus on attack and damage rolls when using a weapon from this group. In addition, the bonuses granted by previous weapon groups increase by +1 each. For example, when a fighter reaches 9th level, he receives a +1 bonus on attack and damage rolls with one weapon group and a +2 bonus on attack and damage rolls with the weapon group selected at 5th level. Bonuses granted from overlapping groups do not stack. Take the highest bonus granted for a weapon if it resides in two or more groups.
No, even if you could it wouldn't matter as the benefit wouldn't stack.
thats what i thought, just wanted to check before making a ruling on it