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Computer Settings

Posted: Wed Sep 09, 2015 11:21 am
by Scubie Doo
I currently have a Liquivision XEO and a Suunto Vytec. I dive with the LV on my wrist and that is my primary computer. I usually dive with the Suunto in gauge mode and I mainly have it as a backup mounted to my camera rig. When I have dove the Suunto in dive mode, it often goes into deco while my LV doesn't even come close. I feel my Suunto is way to conservative (duh), but I also believe my LV is too liberal. I have done a lot of research on settings for both computers. However, I am hesitant to change the settings without completely understanding what is being changed. Plus, I trust people on this board more than random people on the internet. Would someone mind recommending/explaining the options for the Xeo to make it more conservative and options (if any) to make the Suunto less conservative? I'd be happy to take this offline if you don't want to post recommendations to a larger audience. Thanks for your help.

Re: Computer Settings

Posted: Wed Sep 09, 2015 11:22 am
by Scubie Doo
BTW - I am mainly looking for advice on the LV. I may ditch the Vytec soon :-)

Re: Computer Settings

Posted: Wed Sep 09, 2015 11:34 am
by CaptnJack
Do you know what gradient factors (GF) are currently set at in the Xeo?
Here is a well known and readable article on the "m-values" used in the Xeo's buhlmann model. The gradient factors are percentages of maximum allowable m-values.
http://wrobell.it-zone.org/decotengu/_d ... values.pdf

To make your Xeo more like your vytec you probably need to increase the GF low and reduce the GF high. A common default setting is 30/85. If you change this to 50/70, the Xeo will be more like the Vytec. But not exactly vytec like.

The vytec is a bit of a black box, all you can do is reduce the conservatism to "0". Its still going to penalize you heavily on 2nd dives of the day though.

Re: Computer Settings

Posted: Wed Sep 09, 2015 12:06 pm
by Scubie Doo
Thanks, you are correct the current setting is at 30/85 and thank you very much for the article. I will definitely read through this.

On the Vytec, I don't mind diving it even though it is pretty conservative. However, the second dives are the ones that I get penalized for as you mentioned.

Re: Computer Settings

Posted: Wed Sep 09, 2015 12:20 pm
by Jeff Pack
Suunto has a very restrictive and incredibly penalizing bubble model.

Re: Computer Settings

Posted: Wed Sep 09, 2015 12:28 pm
by Scubie Doo
Jeff Pack wrote:Suunto has a very restrictive and incredibly penalizing bubble model.


Totes!

Re: Computer Settings

Posted: Wed Sep 09, 2015 3:41 pm
by Jeremy
Scubie Doo wrote:BTW - I am mainly looking for advice on the LV. I may ditch the Vytec soon :-)


Liquivisions are awesome. Except when they crap out on you.

The answer seems to be: two bungied LV's on each dive.

Actually, I haven't had a LV fail since I added a second one.

I don't get the appeal of the Shearwater other than the AA battery. So haven't jumped on that hype train yet.

Re: Computer Settings

Posted: Wed Sep 09, 2015 3:43 pm
by Jeremy
I don't remember what using a dive computer is like anymore.

:koolaid:

Re: Computer Settings

Posted: Wed Sep 09, 2015 4:28 pm
by Jeff Pack
Jeremy wrote:I don't get the appeal of the Shearwater other than the AA battery. So haven't jumped on that hype train yet.


Besides the fact its easier to read, locally serviced, and way more flexible?

Nah, who needs it

Re: Computer Settings

Posted: Wed Sep 09, 2015 4:42 pm
by CaptnJack
Jeremy wrote:Liquivisions are awesome. Except when they crap out on you.

The answer seems to be: two bungied LV's on each dive.

Actually, I haven't had a LV fail since I added a second one.

Guess you've had at least one fail and are still wearing 2?

Jeremy wrote:I don't get the appeal of the Shearwater

Cause they don't randomly crap out in the first place.

Re: Computer Settings

Posted: Wed Sep 09, 2015 6:19 pm
by Jeremy
My Xens have all failed multiple times. :)

Re: Computer Settings

Posted: Wed Sep 09, 2015 6:23 pm
by Jeremy
Jeff Pack wrote:
Jeremy wrote:I don't get the appeal of the Shearwater other than the AA battery. So haven't jumped on that hype train yet.


Besides the fact its easier to read, locally serviced, and way more flexible?

Nah, who needs it


How do you figure easier to read? Xen seems easier to read. Big multicolor LCD numbers

Re: Computer Settings

Posted: Wed Sep 09, 2015 6:47 pm
by CaptnJack
The shearwater digits are huge and proportional to value. And you can change the colors depending on your tastes/vision.

And they don't shit the bed, period. Little tanks.

Re: Computer Settings

Posted: Wed Sep 09, 2015 7:03 pm
by spatman
Plus Shearwater has an excellent track record with customer service and product stability, whereas LV used their early customer base as test subjects with little support when their units failed. Left a lot of people anti LV as a result.

Re: Computer Settings

Posted: Wed Sep 09, 2015 7:20 pm
by Jeremy
Well, figured Shearwater has a lot going for it since a lot of divers are using them or switching to them.

I do like my Xens...when they are working.

How do you do deco stops on a shearwater? Xen I just tap the side three times to start the timer

Re: Computer Settings

Posted: Thu Sep 10, 2015 8:31 am
by CaptnJack
Are you talking about the gauge mode stopwatch? Honestly it seems ridiculous to spend $150 for decoplanner and $800 for a buhlmann computer running the exact same algorithm; then use it with a decoplanner based plan in gauge mode.

But if you set it in gauge mode I believe its left button then right button.

Re: Computer Settings

Posted: Thu Sep 10, 2015 8:31 am
by CaptnJack

Re: Computer Settings

Posted: Sat Sep 12, 2015 10:52 pm
by seattlepaul1975
Are you using the RGBM add-on?

Re: Computer Settings

Posted: Sun Sep 13, 2015 6:33 pm
by CaptnJack
seattlepaul1975 wrote:Are you using the RGBM add-on?


There is no RGBM option in the Shearwater, there is a VPM option/upgrade available.

"RGBM" is Suunto's proprietary algorithm and not the actual RGBM which is made by Weinke and available via the GAP software.

Re: Computer Settings

Posted: Mon Sep 14, 2015 7:41 am
by seattlepaul1975
CaptnJack wrote:
seattlepaul1975 wrote:Are you using the RGBM add-on?


There is no RGBM option in the Shearwater, there is a VPM option/upgrade available.

"RGBM" is Suunto's proprietary algorithm and not the actual RGBM which is made by Weinke and available via the GAP software.


I was talking about the LV Option: http://www.getfreephase.com/

I use that now and have had it go more Conservative than a cobalt and vyper. Granted I had it set to the most conservative value at that time as I was trying to gauge how it matched up to a buddies Suunto computer.