I agree with others in thinking that your best approach may be to try it out and see how it goes. Pay special attention to how it alters your daily activities or clothing choices. It may be something that you wear in certain situations rather than an all-day, every-day item.
If you'd like to trade, I'm in Afghanistan on my fourth tour. My IOTV with full load-out brushes 90 pounds! It's got some heft to it
In the end, do what you feel is right for you and your family. With things going the way have recently, no one can blame you for feeling the way you do.