Pass the popcorn.Rick Inman::11:
...teehehee...
Think I'll just sit back and watch now...![]()

Seriously, SouthFLdiver, take the gas you need for the dive. As for myself, any time I'm diving with an overhead (real or virtual) I want to be as fully redundant as possible and I wear doubles with an isolation manifold. For NDL dives with no penetration, I'll sometimes dive singles but I put redundant valves on the tank.
Learning to dive with doubles takes some doing - I'd start with the 80's and see how the learning curve goes before doubling up the big boys.
Your question was just fine, by the way. Even so, some of the inmates may come out of their cells looking for a swipe at fresh meat. Don't sweat it unless they start buying you chocolates and roses. We all get flamed from time to time but learning to roll with the punches is part of the cost of admission. So long as you are able to avoid making posts that are stupid, willfully ignorant or that project an arrogant attitude, you'll survive your walk through our woods without too many scars...and someday in the future, as you get ready to rip some newby a new one, remember that you were once in his shoes and appreciated it when others held their punch...