Cheers Manike,
Catch ya drift have never taken a barrel off a spider or Angel so cant compare, I guess they have less thread if they have less of a tolerance issue.
But cocker barrels do take a while to unwind i guess, never had that problem with my Golden Eagle
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)