KSC Imperfects is what I used to call them. They were the first .2g BBs I used. Up till that point, I had only used shitty .12 from Cdn Tire. I had an order of other stuff from Redwolf, and got a couple of bags of KSC. Even as a noob, I could see that injection 'nipple' on a lot of them. And the BBs gave me a lot of grief. It's not until I discovered MT BBs that I realized it didn't have to be misfeeds, broken BBs, barrel jams, etc...
Oh yeah, and discovering that BBs don't need to smash into a zillion small fragments when impacting a hard surface was also an eye-opener...
