The way I'm going to do it is 360, 380 and 450 are going to be in one group since they are effectively the same size. Then, you have the 500's that are even worse with 425, 500 and 570 lol. It's somethign that is needed to keep confusion down on what goes where. Even a couple years ago when goblin came out with the 660, no one knew if they should put it in the 600 section, or the 700. So this change has been a long time coming.