koreancuber
Veteran
I'm really liking the Rubik's cubies in the FII frame. No idea why, but I can verify the 33 degree corner cuts. In fact, I got 34 degrees! However, the cube pops a bit much, especially because I sanded down my cubies.
I also like the C4Y core and spring with DS cubies. Extremely fast (though not quite as fast as the original) and cuts down on lock-ups from the DS. Corner cutting was slightly increased. If only DS cubes came in black...
My Rubik's cubies and FII frame doesn't pop at all. Is yours at a too loose tension? Its good at a medium tight tension for my taste.