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I am sure a lot of people already done it, but just want to share something
for the guys haven't yet...

A while back, George was posting about he had somehow calculated his deco
schedule in his head *while* decoing in the water. I thought to myself "How
the hell do I learn how to do that ?"

And I still haven't a clue until I did a little project over the Easter
week-end with the GUE Decoplanner. I wanted to create a set of trimix tables
so I don't have to fire up the laptop everytime I need to calculate the deco
schedule.

So I decided on a fix MOD PPO2 (1.2), a fix END (30m) and fix 2 deco gases
(50, 100%) to be used independently of MOD. For each increment of 5m from 50
to 100m, I calculated the deco schedule for different BT in increments of 5
min. I also generated alternative schedules for each step if I had lost one
of the deco gases. In addition, I generated tables for each BT gas at PPO2
of 1.4 (10m more) in case of needing to go deeper for whatever reason.

After a while, I could "guestimate" the deco schedule of the next depth or
BT increment pretty accurately.

I am not saying that I could calculate my schedule in my head like George,
but if I had dropped the deco table (done it before) I could whip out
another table for another depth or time, estimate it accurately and not be a
decoweenie. And I feel that I only need to memorize 2 or 3 tables and could
inter/extrapolate the rest easily.

I guess the tough part will be when I add a third deco gas for the deeper
dive. Wonder how that would affect everything so far ?

If you see any flaws, please comment.

-Phi

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