mini QJ Pop?

[AnsonL]

the centre pieces on my 4x4 keep poping.when my 4x4 pops,it's not the edge that pops but the centre pieces poping out from the center ball.it's a mini QJ and i poped it on the first day i bought when it was still tight...is there something wrong with the ball in the center?does anyone knows where i can get a center bal for a mini Qj?

 

[Yes We Can!]

I had that too. Change the core with another mini QJ, regular QJ or Meffert's.

 

[vinylen]

i've been experiencing this on my mini qj aswell! any other solutions than buying a new core?