I use a belly band occasionally. I wear it around the chest and the gun sits under my left shoulder similar to a vertical shoulder holster.
I bought it at a gun show but here is a link to it online.
http://www.holstersrus.com/product_i...oducts_id/1644
Pros: conceals VERY well. Since it is worn under my shirt no concealing vest/jacket is needed. I use it for deep concealment when I absolutely cannot risk being made.
Cons: Maybe not the fastest draw (although I typically use a shirt with "snaps" instead of buttons).
Mine requires an undershirt to be comfortable. It also seems a little "warm". The last couple of times I wore it my gun was drenched with sweat. - I know many of you don't see this as a problem but this is my only mode of carry where that happens.
It has been washed a few times now and I can see that it won't last forever. If this was my primary means of carry I would expect to replace it every 3-6 months
Comments: I DO like it and will keep one (I currently have 2) because occasionally I have a need for it. My only real complaint is that mine seems to allow a lot of sweat to get to the gun. Maybe other brands are better about this. Other than that it works very well for me.
YMMV