For information, I contacted Shearwater by mail and here is their answer.
Looks like these values come from the past and they didn't dare changing them until a new study proves there are better GF couples.
Here is what I recall from reading your link:
"For Bühlmann ZHL-16C, GF low settings lower than 55 led to first stops that were considered to be too deep. The study mentioned that a GF Low of 70 was also acceptable, so it explicitly approved of a range of 55-70 but did not specify an upper...
Thanks for your inputs, but it actually doesn't answer my initial question: why GF low are set so small by default in Shearwater dive computers?
And again, Rec mode doesn't mean no-deco dive only, or Shearwater would not give us the option to define up to 3 gases in this mode.
Thus, Rec mode...
It is all about what you call "recreational dives", as on the other side of the Atlantic, the limit of recreational diving is 60m (CMAS 3* Diver)
That is why in Shearwater Rec mode, you can dive with up to 3 gases, including 99% Oxygen.
Indeed, from what I understood of gradient factors, for a...
Even 55~70 seems quite low for recreational Air/Nitrox dives.
I understand the benefit/obligation of starting deco stops early during Trimix dives, but for NDL dives, or small TTS dives, I really don't.
I am wondering why @Shearwater chose to set such GF low values in the 3 default conservatism settings in recreational mode.
GF low values are set between 35 to 45, which implies to have a deep first stop while it is arguably accepted that deep stops are not recommended for...
This is the trip report I have written at that time, automatically translated from French by Google Translate.
And this is the video I made clearly showing there is not only great macro in this area, but nice reef/wreck diving too.
It is worth contacting Anilao Scuba Dive Center (ASDC) as it was the cheapest diving resort in the area last time I went there (Jan 2018)
They are cheap but friendly, professional and 100% locally owned.
This movie is beautiful. Thank you for sharing.
I was supposed to go there end of March, in the best period for whale shark watching, but I had to cancel the trip due to the current situation.
I can't wait to be able to schedule another trip to Southern Leyte.
Same for me.
I just wrote to PDR that I could not make it this time due to the current situation and they simply acknowledged my message and wished me well.
I will replan a trip there as soon as this madness is over, but probably not before next year to not miss the whale shark season.
For information, Cebu Pacific offered me 2 options due to the current situation:
1/Simply cancel my booking and get the full amount on a virtual wallet (Travel Fund) which can be used anytime until 12/31/2020 on a new booking
2/ One free rescheduling of my current booking to another date this...
I have never been to Labuan Bajo or Komodo so I cannot really compare, but I really liked my trip to Nusa Penida last October and didn't find the island of underwater especially dirty.
Dives are beautiful with loads of fish activity, and even if I was not so lucky with Mantas and Mola-Mola, I...