SpeedCubeReview
Veteran
I've loosened the tensions on mine, so occasionally, an internal piece will somehow find a way to force itself between the centers and edges and fly out.
Someone please tell me how 4x4s work.
Ya, any loosening the the GuanSu pops. I loosened mine a little bit and I had three pops in the first solve. It feels nice in the hands but Because of this I cannot recommend the cube.
The internal pieces basically makes the 4x4 act like a 5x5. The internal pieces fill in where the 5x5 pieces are. Think of a 2x2 is basically just a 3x3 with the corners stretching over the other edges which are not internal.