why does it matter if you got the latest batch if yours has no issues?I just got the Sheath for my 17 PM. I'm in Ontario, Canada and shipping took 1 day which was surprising. So far I've tried the Mous Limitless, and dbrand Grip, but plan on returning both. The Sheath is fantastic, I love the form factor, and it looks like it will protect the phone if I drop it. The buttons don't rattle, but how do I determine if I have the latest batch?