Zero issues with my 8 LAR mags loaded to 10 here. There were reports of an early batch with issues when loaded to 10. Don't remember the details (?spring tension) since mine work perfectly.
A possible contributing factor to my lack of problems is the carbine I stuff them into.
I don't think its the carbines that they are being stuffed into. Pretty sure its the mags.
Noveske CQB

KAC SR15
