Feedback on recent two-tank and dive limits

[lizardland]

I'd be curious if it's based on anything except familiarity and nostalgia?

I have owned both Aladin Pros and Shearwaters. I'd be curious as to what else you would expect opinion to be based off of other than past experience? I still own the Aladin Pros, I got rid of my Shearwaters.

Maybe it is nostalgia or maybe it is that I would consider myself on the ascetic end of the hogarthian spectrum but I've never found my diving enhanced by being flooded with data and sub-menus. More is not better than enough.

 

[tursiops]

My position on computers using Bhulmann with GF (air, nitrox and oxygen capable) is as entry level technical diving computers. Yes, they can be used by recreational level divers, but with caution.

I know a LOT of people with a Buhlmann/GF computer, and NONE of them are the least bit interested in technical diving. They use them in Rec mode, appreciate the clarity of the info on the screen, and even understand the GFHi they depend on. I think you perhaps underappreciate modern divers.

 

[tursiops]

The RDP could be adapted to multi-level diving to a degree during the dive.

No. Common myth, but incorrect. Lots of info on this.

 

[tursiops]

At best all approaches to diving are an "educated guess" that some people inject the word "science" into the conversation to make an "educated guess" sound important.

Another myth. Anything that is not perfect is a guess. BS.

 

[tursiops]

If he goes straight to a dive computer loaded with Buhlman & GF, he now has to understand the combined intricacies of Buhlmann combined with GFs.

Wrong again. He just uses his new computer as delivered: in recreational mode with medium conservatism. His problem comes if he just starts silly-nilly pressing buttons and changing things.....but the same issue would arise with his DSAT computer.

 

[tursiops]

Which is exactly what the OP’s computer did. The Peregrine is not convoluted pseudo tech diving equipment. It’s a recreational computer that is quite easy to use. It’s got a well written user manual and a user interface that is easy to use. Significantly easier to use than the DSAT and dual algorithm computers I have at home.

 

[tursiops]

This is the basic level section of the forum

....where facts and accuracy still matter more than myths and personal biases.

 

[David Carron]

We are totally on the same page here and I think it is you who made me notice that point.

For others, even without having the computer suggest an action, indicating that the ceiling has been broken, even if it isn't any more, and for how long would be a progress. As for potential actions by the computer, it is easy to come with suggestions which would probably be improvement (applying one of the multiple thumb rules suggested in table manuals, freezing the off-gasing when the ceiling is broken, slowing all off-gasing afterwards by modifying the time constant of the sursaturated compartments, automatically lowering GFs,...) the difficulty is being sure that's effective enough, and when to switch to the medical emergency procedure.

I know, but this thread seems to be wandering perilously close to "whatever shearwater does is by definition the best thing to do" so a counter example seemed opportune.

 

[tursiops]

RGBM or GF makes no difference it was him not fully understanding his DC and the fact he got distracted and wasn't paying attention to depth or NDL.

 

[tursiops]

I have no problems with his computer and algorithm being used for entry level technical diving.

If he doesn't RTFM then I DO have a problem with him using his computer for entry level technical diving.
The issue is not the type of diving, it is not having RTFM.