Yeah, I believe Wolf is normally considered to be underpowered. That, coupled with 2k rounds with no cleaning, and my guess would be that it was just short stroking by a very little bit, especially considering that the lube fixed it.
Cleaning is theraputic. And it helps the gun work.
I'd be surprised that turning the gas up didn't do it though.
Cleaning is theraputic. And it helps the gun work.