Wait, a rammer or a pusher (What have I started ) is gonna rape the weapons. It needs medium beaters BTW. Also it you angle the motors up slightly you might be able to gut rip.
But razors have very little HP. On a bot where the weapons are permanently exposed you want them to be strong at least. Anyway, the way he's mounted them will mean that attacking a chassis's going to be hard, and since that's a razors forte I hardly thing its a good thing to use here.
I'm guessing concussion does damage to surrounding components as well
Piercing does more damage to chassis. Concussion does more damage to components.
Good rammers usually have 6wd npc fast.