I can see it happening. Before I spent the money on spitfires I thought I could get away with a cheaper brand. Well the 5 pt I shot I had a clean pass through, it was a 3 blade. 1 blade opened up full, 1 only half way and 1 not at all. I found him mabey 60 yards away dead but after looking at the whole I knew it was time to spend the money. But now I even have to 2nd guess the spitfires although I have never had a problem with them. Mechanical is mechanicle and failures I guess will happen.

On mine though, I spray a lubericant on it and work it it in.