Nope, in my experience the 55mm Zhanchi (or any Zhanchi really) doesn't really pop unless you don't know how to turn it. If it does pop out of the box then tighten it until you get used to it because it is a very fast cube. None of my 55mm Zhanchis pop at home but when I get nervous in competitions and don't turn as well, they do. But it's only happened twiceOverall it's still a very good 3x3.
Thanks Tina, youre doing really a good job contributing to the community.
