[Patch] Fix planner notes gas change output logic

[Anton Lundin]

On 18 June, 2015 - Dirk Hohndel wrote:

> On Thu, Jun 18, 2015 at 08:16:36AM +0200, Robert C. Helling wrote:
> > 
> > BTW this whole discussion is a bit academic: gas switches without stop that we are worrying about do not appear in real dives. As no stops come with short shallow dives for which you would not take additional gases. Or we could resolve it by stating a gas change is automatically followed by a stop of at least one minute. After all the gas change takes some time. Not to mention esoteric topics like the oxygen window. 
> 
> In TDI training you will switch to your "low" deco gas as deep as
> possible, usually before the first stop. We often dive with trimix, EAN40,
> EAN80 and the switch to EAN40 will be at 80'/25m or 100'/30m (depending on
> whether you decided on pO₂ of 1.4 or 1.6 for the deco gas). Which tends to
> be before the first stop.
> 

I don't really see why some training agencies push such a policy,
especially if the mod is quite a bit deeper than the fist stop.

We usually just switch at whatever the fist stop after the mod of the
deco gas is. No reason to stop the whole team and do the switch.


I know that some divers "on the fly" but I'd say thats a really bad
idea. Which gas you're breathing is really important and we always
require the other team members to verify the gas switch before starting
to breath that gas.


//Anton


-- 
Anton Lundin	+46702-161604