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Oceanic DSAT is basically the PADI RDP, even per Oceanic, i.e. optimized for things like liveaboards, or Caribbean diving. Comparing it to Buhlmann on the first dive is unfair because what they have not told us is how the computer works for repetitive diving. DSAT uses a completely different method to calculation tissue loading than the Buhlmann algorithm they used to make PZ+, but again, we don't know what their conservatism levels mean or what they equate to in a public algorithm. Do I use DSAT even though on the first dive it roughly matches Buhlmann GF99, but on the third dive of the day it's going to GF70 *I have no idea what it actually ends up looking like, was just a random number*. The difference here is on how they choose to track the slow tissues and which tissues they favor. Are they trying to prevent bubbles in the fast tissues but that comes at the expense of the slow tissues still ongassing? *all bubble models, and a Buhlmann algorithm with a low GF Lo which will quickly shorten your repetitive dives but not really impact your first dive*, or do they find a more balanced or slow tissue bias where they try to get you shallow quick in order to minimize on gassing of the slow tissues?.
@scubadada has been diving with DSAT for a long time. More recently, he added a Nitek Q to his wrist and has been actively diving and comparing DSAT to using GF. Maybe he will pop in here and shed some real world light on how DSAT compares to using GF for repetitive dives.
Sooner or later NAUI, SSI, PADI etc will run a course on "understanding your computer algorithm".
From time to time I had came across divers who did not have a clue what their own computers had been telling them! The computer is flashing, the alarm went off etc etc. If those divers found it too troublesome to read the manual what is the chance for them to take even a casually glance on the theory of the algorithm used in dive computer.This is very well possible, a specialty course to discuss all details of this topic. For NAUI, this is covered in our NAUI Master Diver course and in the technical courses.
From time to time I had came across divers who did not have a clue what their own computers had been telling them! The computer is flashing, the alarm went off etc etc. If those divers found it too troublesome to read the manual what is the chance for them to take even a casually glance on the theory of the algorithm used in dive computer.
Back to the original question the Oceanic DSAT is probably what you are looking for. With the newer Oceanic's the dual algorithm units have a selection DSAT or Pz+ so this gives you flexibility to adjust to the type of diving you plan to do. Oceanic also owned the Aeris brand and those computers came out of same manufacturer (Palegic Pressure Systems) but the Aeris line has been folded back into Oceanic. There is still inventory of the Aeris computers for sale and Oceanic supports and warranties them. The Aeris A300 is the equivalent of the VEO 3.0 and can be had off Amazon for $199.Hello, I am looking for a new computer with a non conservative logarithm. Recommendations?
In other words, the conservatism adjustment is wide ranged in the Oceanic computers.