Well I can only hold the O/U or U/O or whatever behind bars for a little while longer.
If you guys cannot come up with some hard evidence against it I'm afraid I'll have to uncuff it and release it!

The bigger gape causing slower and harder opening and reloading is IMO merely heresay evidence!

You'll all have to come up with something a lot better or we'll have to close the case and admit that the stackbarrel is just as good as the SxS for use on DG!