i think that each gear takes a property of rubber and eloborates on it. rubber can of coure atretch like crazy but wat i wanna see id oda compress it. Chack it out after using gear 3rd luffy gets all little so i think id be sick if he would compress his body to that zise and bounce around like a superball. Kinda like Bellamy but way faster. And of course itd be faster than gear second. I just think id be badass to see a little kid Luffy whoopin ass and going at least twice as fast as Gear 2nd.