The overhand knot secures the system. A biner can be used instead of the overhand to secure that bight to the load line. While it doesn't have to be locking a little care should be used that the bight which releases the mule knot can not run over the gate of the carabiner if it is a non-locker.
quick and easy. Do you advise closing the system with a biner?
The overhand knot secures the system. A biner can be used instead of the overhand to secure that bight to the load line. While it doesn't have to be locking a little care should be used that the bight which releases the mule knot can not run over the gate of the carabiner if it is a non-locker.