Smoker stared evenly in reply, "It's better to train with weights. Strengthens muscles now for when you need them later." He gestured a thumb to his jitte. "Do you know what seastone does a devil fruit user, girl?" Without waiting for a reply he continued, "My jitte is tipped in it. Weighs me down. Drags me towards the ocean to drown. Better to build up resistance now than have it affect you by accident in battle. And then when you're fighting without it, you'll be even stronger."