User blog comment:AYET/Luffy loses an arm/@comment-29259794-20141001231257

Sorry to say but I think this sounds like a bad idea. Why have Luffy lose an arm if he’s going to get a magically invisible haki one to replace it. Like Cain-chin said this would be both troublesome for Oda to remember that only some people can see it and the arm could not have his DP power if it’s made of pure haki. You even said that it wouldn't pump Gear Second due to it not having real blood; also I believe others such as Shanks and Zoro would have made a haki arm and eye respectively as both of them have enormous willpower as well. Also there is no real reason for him to lose an arm it's not like the Straw Hat’s don't have someone all ready with a small handicapped and is still a badass.