Just got my lingyun - a real surprise. It corrected my perception that it is a popping cube - I believe it pops only for those who set tension loose.
I set it to where it is able to cut 35-40 deg. And it has yet to pop on me.
Its advantage over lunhui - it is lighter and with almost no lockups (doesnt mean lunhui locks up a lot).
Disadvantage? I can't really 'cut loose' for fear of pop explosion (as i would a lunhui).
For those who prefers tighter tension, get this cube before it disappears...just bear in mind - it is a cube in its own right, not a guhong-next-gen.