cancun mark:
That quote by MHK is stunning. Steve, how does he calculate dives deeper than 120? I just have to have more info on this because although I have known for years about the 120 rule for figuring out the NDL, in my mind, it works for non repetitive no deco dives only, and I know MHK does the ocasional dive that does not fit that kind of profile....
(if you think it is more appropriate, start a "120 rule" thread in a different forum where it is less likely to get us into a bunfight)
It's not stunning at all. As you've said, it's been around for decades.
We are speaking of recreational NDL diving, and not deco diving. I would hope that would have been obvious to everyone, but I guess it's worth noting, I hope like heck no one is going to run out and do this stuff on back to back to back 120ft + dives to the limits, on any gas of their choice! They'd be in for a world of hurt to be sure. They would also NOT be doing recreational diving either.
It will work on multi-level diving, and repetitive dives. I just didn't mention that part of the math in my previous post, nor will I.
I use a *******ized (I would assume) method of doing these, as it was put to me this way, by MHK I do believe. I was told..."Sit down, with the tables, run some profiles, and try to figure out the commonality in all this madness. Figure out a simple "rule" that will work across the board. It's right there in front of you."
So I did, and I did. I'm not saying it's what GUE teaches, because I don't know that part of their equation for sure, but I have found out what it probably is, because my method works, and it makes sense given what it seems to me, they've done with their NDL's and how the initial first dive (and multilevel dives) is worked out.
Fortunately, I will soon be seeing first hand (As I suggest everyone do) what GUE does teach on this topic. It will be interesting to see how "close" I come to their formula.
I really should give you the examples that I have using the RDP, Rule 120(Or 130 for EAN32) and V-planner. The differences in time would blow your mind. Which one is "more" right?
You'd readily see all this bunk a few here are worrying about is better spent doing just about anythign else. This model, that model, PADI tables, NAUI tables, USN Tables, Cobra, Vyper, Mosquito (Any other animal I failed to mention??) C'mon, it's recreational diving for pete's sake!
Seeing how easy GUE's "way" is, I'd never do it any other way. There's no need. It's simple and it works, it's also free to use, it gets you thinking more about your dive, and will no doubt give you an appreciation of GUE methodology. (That's supposed to be a good thing :] )
regards gents
Steve
P.S. Any questions? Please ask MHK.