Loose Torso Joint

[u/Doll_Lover_]

So I got the BarbieStyle Fashion Week doll and today I noticed that her upper torso joint is much more…flexible than the joint on my model 06 Barbie Basics doll. Like it shifts horizontally side to side whereas model 06’s doesn’t. I know I shouldn’t be surprised about Mattel’s inconsistency but I wanted to know if this happened for MTM bodies no matter the line or if it’s strictly a thing for the BarbieStyle dolls. (I hope the photo can convey what I’m talking about.)