Hey Rob, where you been fella?
....aren't you a mod on a Crosman forum somewhere....?
I was, and probably still am!!. A good mate of mine got one of those King Ratcatcher things and started the forum, He asked me to be a mod, it seemed a good idea at the time.
But on reflection the very best thing you can do with a Crosman is GET RID OF IT, or better still don't buy one.
I've never owned a Crosman but I have a couple of Chinese things, an XS78 and XS79, I tuned the 79 and for a short time it was a bloody good gun, but gas leaks and other problems set in, the 78 was just as bad