It would simply give you excuses for invokes and compels, based on the aspect text. Nothing less, nothing more.
— Wesroth attacks Quadron using his longsword, with Fighting 3
— Ok but Quadron has a Long Spear, here's a compel for you, this fate point says Wesroth spends this exchange trying to close in with Quadron, struggling to find an opening.
— Good call, but no, I refuse your compel. Here's a fate point, Wesroth does manage to attack despite the long spear
Wesroth:Attack: [Roll + + - ·] + [Fighting 3] = +4(Great)
Quadron:Defend: [Roll + - · ·] + [Fighting 2] = +2(Fair)
— Whoops, that's physical stress box #2 for me …err… Quadron. Fortunately Quadron can take it and live.
— Not so fast, Wesroth has a Balanced longsword, and I invoke it. He feints an attack but flips the sword and uses the pommel to push Quadron's spear aside, easily getting inside his guard. That brings my roll into a fantastic +6. I guess that's a #4 stress box, which Quadron doesn't have
— Oh cr*p! …
… and it goes on like this