sidemount tanks

I am just starting into the sidemount world, just adapting a transpac which I already have.
My plan is to use two 7l steel faber stage bottles, for rec dives. I am thinking nice and light
more air than I normally have (10.5) any thoughts on this. I am trying to reduce the stress on my back,
and i think this may be really good. I am using an OMS 32lb wing . Probably need very little lead as well...... any thought or advice much appreciated

7/232 steel cylinders are being used in British cave diving, and yes, they are good to dive with... I have dived them several times. At home I dive with 12/232 steel Eurocylinders, and they are lovely in water (and not so on ground).

---------- Post added April 9th, 2012 at 08:56 AM ----------

One 7l 232bar steel weighs about 8.8kg in air and 1.2kg empty in cold sweet water. So, if you want to be able to do a safety stop with near empty cylinders, you need to count these cylinders to weigh at 1.2kg each. The rest goes to a weight belt - or better yet - a weight harness.

It's probably bets to say what water temps, and entries you are shooting at. For the tropics, anything but standard 80s is probably not a good idea. FOr surf entries this is also true

I like steels just fine in BM, but simply find them unusable in SM for beach entries in surf.