I am wondering what exactly is the advantage of removing the wing tips from the Flip 3D or Hype? I have seen pics and understand the concept but having never flown the clipped wing version, it is hard to understand what it does for you and how it helps these (and I am sure others) performance wise. Is it simply a faster roll rate? do the tips do something in KE flight that is undesireable?

Please help me understand why I want to modify my plane this way.