louis:just for clarification this thread was about the wait belt buckle on the hog harness. My cam straps work just fine.
whoops! I should do a better job reading.
Adjusting the backplate/harness
http://www.dir-diver.com/en/equipment/backplate_adjustment.html
has weaving the buckle. In case you want a graphical explanation.
One thing that I have seen, is when putting on the waist strap, people sometimes misthread so that the side going into the buckle comes out the backside of the buckle, as opposed to going straight back. When you close the buckle, it should press/lock against that band that you just threaded through.
-Don