My dive computer is too conservative, what can I do ?

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I've just bought a Suunto Zoop Novo, but I realise that the algorithm used is on average significantly more conservative than that of the dive computers of the people I dive with (for example Aqualung).
I had one of the first dive computers from Suunto (1990) and it was based upon Navy tables... 60' for 60 mins. And it was fine. Then as more computers came out, they became more conservative, probably because the legal dept didn't want the headaches of diver lawsuits, etc. The need to be completely safe for EVERYONE.

I bought a beautiful wireless Suunto later on... But it was a pain in the arse.
1. I'd set it going out for a dive on a boat, then it would go to sleep or disconnect from my transmitter. It would be a rush at the last minute to reconnect, get it set. AND..
2. It was very conservative! Found myself coming up way before other divers even set for the most liberal setting. If I have to come up a couple / few minutes just before other divers, I'm fine. But this computer had me coming up, doing my safety and on the boat before other divers were coming up.

So I sold it and never looked back. Suunto uses RGBM algorithms and is more conservative. I bought a Sherwood and love it. It is more liberal and if I want, I can make it more conservative, but for my diving it is fine. Not the longest dives, nor the shortest dives and it fits with what everyone else on the boat is diving. YMMV.

Some info in the link below:
 
I come to this forum for entertainment so here's my funny diatribe :)

I'm on my 55th year diving after being an instructor (1978-1990), co-owning a dive shop (1985-1990) and traveling the world outside of my Ohio, USA midwest home.

The angst people have over conservative versus liberal computer algorithms boggles my brain :(

I am one of those whose eyes glaze over hearing gradient factor discussions, ugh, just kill me please! Too any are usually from people with health concerns that should have them diving more conservatively in my opinion.

A majority of these folks couldn't run or fast walk a mile even if chased by Zombies LOL....

They think having $$$ or deco knowledge makes them immune to bends......Well it won't and I've seen people be surprised when their turn comes around.....Hopefully just a skin bends incident if they're lucky......Most think they're Navy SEALS and woefully dishonest about their age and physical condition.

I used to dive the ORCA Pilot EAN computers actually made by BENEMEC in Finland. They were also sold as the Dacor EQUANOX, DIVE RITE Status and other branded names.

They'd NEVER lock you out, were very liberal but could be made more conservative, would penalize you a bit on repetitive dives if you did something stupid, etc.

The GOLD TOUCH contacts eventually wouldn't work and push buttons (now touch screens) eventually displaced touch buttons. T my knowledge BENEMEC moved on to other manufacturing.

For over 3 decades for me it's been SUUNTO. I like them and with a $75.00 SPG dive wrist mounted ZOOP NOVOs now. I dive 2, own 4 and regularly find NEW or with maybe a few dives on them for max of$150.00. They simply work, at least for me.

On the transmitters and such even though I see many folks using them these days almost EVERYONE especially on long $$$$ trips still runs a SPG! LOL.......

I'm 71 and fit for my age (no BP or other meds) and completed 29 dives in Raja Ampat, 28 in Maldives and 26 in Bali all within the last 6 months diving 32% NITROX and never ran out of bottom time.

In Bali 3 of us did an 84 minute dive for our buddy's AGE (he's 84).

It was glorious and yes, we worked our way up slowly drifting along several dive sites to our exit point.

Our youngish Balinese dive guide (46 and smokes like a fiend but diving every day) dives his SUUNTO ZOOP NOVO every friggin' day for WORK......Granted maybe 35M max on multiple dives but OMG it works for him! LOL......

In my 12 + trips to Philippines I saw dive guides with 5,000+ dives under their belt using SUUNTO ZOOP (original 3 button model) for thousands of dives before they died. In Raja Ampat the live-aboard co-host lady was still using a SUUNTO Gekko and early SUUNTO EON all with 3,000+ dives on them !!!

SUUNTO computers are inexpensive with user changeable batteries. The newest 4 button ZOOP NOVO is less conservative (at least in my experience) but sure, it's not as liberal as the latest Garmin or Shearwater.

So what......

If you think pushing your depths / bottom time / short surface interval have at it.....

For years I've never done less than 1-1.5 hours between dives. Diving NITROX on repetitive dives gets me plenty of bottom time in a day of multi-day dive trips anywhere in the world.

I understand underwater time is limited and precious. I used to be obesessed in my younger days when I thought I was bulletproof. Age gives you insights and calculations into the risks versus rewards.

I hope my comments are received as a voice of caution to just enjoy diving. Last I checked scuba diving ISN'T a competitive sport. I still enjoy diving as much as when I was 18 years old and hope to have a few more years in good health.

No photo or extra 2-3-10 minutes is worth risking life and limb so maybe consider that when discussing dive computer algorithms, Gradient Factors , etc.

When scuba gets too heavy I'll migrate to free diving where you can still wear some cool gadget for time and depth and keep swimming in the sea :)

Just one old guy's opinion and hope some made you laugh!

David Haas

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