I ran across an unopened pack of Tuff strips that was sitting in my range bag for at least 10 years. Opened up & tried loading ammo in, it’s a no-go. Only other ones I’ve used are Safariland, and those I’d gotten in already used/worn in condition. Is it possible these hardened to the point of being not pliable enough to get ammo into, or am I just too much of a weeny & not using enough pressure to get the rounds to seat? I’ve heard both good and bad reviews on the brand, so I’m wondering if anybody has any ideas/tips.