yeah, I heard about that "burp" before, but the two different pro-tech equipped cockers I've shot including Jerry's, don't burp. Mine doesn't burp, and they sure as heII aren't falling out of time. Speaking of time, I was curious and I was snoopin around the internals of my grip frame, and upon noticing the movement of the internal solenoid, the movement to release the hammer was frieghteningly short, by the standards of my former hinge trigger frame, but this thing is timed wonderfully CLOSE, with no blowback whatsoever... This frame is solid fella's, don't knock it. It's only flaws are the grip panels and the wire stickin out front, but they have already redesigned the front manifold (I've seen the prototype)and new grips which are soon to be produced!!!