Um, I can't nail down the dates offhand, but its definitely been a few patches ago. I think maybe so much as 8 months or more. I can remember being able to manually edit the .cfg files for bombers, but they later set all gun positions convergences at 500yds. As far as I know, only the forward firing fixed guns (b26, val) can be adjusted. I can't tell you which patch/update was precisely the one that had the change, but it's been several months at a minimum if I remember correctly. Surely someone knows; if not, it's likely to appear in the older readme files for the patches.