WJL:At this point you have the DIR reasoning on why you don't need two SPGs. Your comments and responses haven't done anything to cause that thinking to be revised. "Unexpected and strenuous" situations are at the foundation of the planning process for DIR, but do not require the need for one diver to carry two SPGs.
If you want to use two SPGs on your rig, go ahead. Veni. Vidi. Vici.
Hi WJL
This what I meant by "I start to understand". And it is by no means in my intention to revise anything or insist on my points but to learn some more aspects. I am very grateful for this and the other inputs, which are to my astonishment, very constructive (I know other boards that are poor in this respect). You all gave me some really good aspects to think things over and I will not forget the reasonings you gave me on my way.
"Tempora mutantur et nos mutamur in illis."