One thing I agree with jc2 is that, he can at least replace the cheapest part of the setup if he decided to use Deluxe. Another diver mentioned that, let's not getting the expensive branded harness first, in case you want to change to something else. Looks like it's a good advice.
I am not a tech diver yet, some of the reasons behind the DIR is still new to me.
Just a question in my mind (I asked the same question before in another thread) about the one piece harness, not trying to challenge the DIR, hope someone can tell. So in physics, if you cut a rope and tied them back again into one, of course you will have a point of weakness at the knot; however if it is not a knot, but a well built junction like those harness being used in mountaineering e.g.
http://www.midwestmtn.com/products.php?sub_catID=36
these are tested items, good enough to carry a person's weight + strong enough to hold the person in case he/she falls from a cliff. They are not one piece systems, right, nobody question about the mountaineer designs, because they are tested before sold.
Back to the BC world, let's use Zeagle 911, you can be lift up with that thing:
http://www.scubaboard.com/showthread.php?t=66415
I mean, if the design is correctly calculated, well built, and tested (this is something we can do measurement on, e.g. a stress test until we see the harness under design breaks, so that we can tell how much tension the system can take under different conditions etc, right?), it's just as good.
I still mean one piece is good, but it is not the only "safe harness" right?
Again this is only a question + my point of view, not a challenge.
Other things we can compare....
About the cost, any famous branded bp/w is more expensive than any average priced famous branded jacket style bc. If a person needs to add pockets, bag and other things to the bp/w, they're not very cheap.
If we break the harness, it's cheap to replace, if we break the wing it's not.
Yes, if we break any part of the jacket style bc yes, it's expensive.
How often do we break this and that, maybe somebody else can help me here...
On the other hand, I agree that bp/w is more streamline and it's the choice for double.
Speedwise, the speed to setup 5, 10 min for hog? 30 min for readjust in case of changing thickness of wetsuit etc, compare to 30 sec, 15 min repectively for deluxe, maybe?
Any thought, comment?