Mine and 12 other team minis all came fine out of the box beginning of last year. It seems KEE fixed all the Gen 1 issues pretty quickly.
If you need any information about the Mini you can PM me or any of our team no problem. We've shot close to 80 boxes a month some months last year, and you get to know a marker pretty well when you shoot that much. And /or if you get one, I can help you set it up if you want?