"I would think the type of weapon needed would depend more on the person using it than the type of enemy being fought, but I can see where you're coming from." Sai tilted his head, thinking for a moment. "Perhaps we're used to different styles of combat."

He remembered Usopp's makeshift armor from the night before. Something like that would weight someone down more than anything. "A lightweight mesh," he said, recalling the usual light armor of the ninja (if they wore any at all), "worn under the clothing. That provides some extra protection, but I don't know how you would come by it."