rjack321,
I dive both fresh and salt water, my BC is the dive rite nomad xt with a square buttplate and heavy bungee. I do have a small weight pouch on my original set and have put a 2 pound weight in each in the past (not always). My new set doesn't have weight pockets so I will see if that makes a difference and will ask my buddy to observe or take pictures.
I dive rule of thirds (actually 6ths in SM) so never get below 1/3 pressure in my tanks and this may be why I haven't experienced a noticeable issue. I took my side mount course with a very experienced SM instructor so tank placement and trim was started there as part of the course and I was diving this BC; I set my tanks up exactly as per the course rentals.
I will pay close attention and ask my buddies to observe; specifically when I have unweighted tanks.