So I've been reading the posts on Steel vs. Aluminum, etc...

I usually use AL80's, but I have liked steel tanks very much every time I've used them. Mainly because of getting weight out of the BC and because I can carry more air in a smaller tank. I'm looking at getting a set of Steel 100 or 110 tanks...

Could someone please educate me about High Pressure and Low Pressure Steel? When to use/choose each?

Thanks!