Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
If I recall correctly, Teric allows a choice of either 3 or 5 minutes fixed duration safety stops. I would love to be able to set safety stop that’s variable in duration but fixed in terms of safety margin below m-value, ie surface gf.
Say I were to set gf hi/low to 99/99 for max NDL, I want to be able to set a safety stop of surface gf not exceeding 75 an let Teric tell me the ceiling and duration of the safety stop.
Your SS depth can be whatever you choose it to be, 15 feet is commonly used, it could just as easily be 10 or 20 feet.
Whether you do a no stop dive or a light deco dive, you can choose to hang out and decrease your SurfGF to whatever value you want. The time to decrease your SurfGF will be dictated by your actual depth.
Edit: sorry, this was adequately addressed while I typed
Precisely. You understand what I'm trying to do.I'm presuming the OP wants to dive 99/99 to maximize his NDL, then chill out until he's happy with his GF. I do the same thing.
It's cheating, a little, if you're diving near the edge of NDL. But it's one safe way to not break the boat rule about not going into deco.
I've hit surface gf of 99 a couple of times. Would be nice if the computer could show safety stop info based on surface gf.Use your SurGF. It takes about 1.5-2 min per percent to drop it on a no-stop dive. So if you're diving 99/99, but showing SurGF 80, plan on an 8 min safety stop to get it to 75.
But for me it's rare to get past the 70's, even on a deep dive.
You can always choose to skip a safety stop. You can indeed stop to decrease your surface gf. Hopefully one day, recreational mode will allow me to set safety based on gradient factors or surface gf, just as tech divers set their safety by choosing their gf hi.If you do not exceed your NDL, you can go directly to the surface and not exceed GF high. No SS, nothing. You can choose to stop and decrease your SurfGF to whatever you desire.
There are indeed ways to go round it such as tech mode 75/75 and use deco info, which is really safety if you do not exceed m-value. But in a recreational setting it is not permissible to have your computer show deco.so just dive with a GF high of 75 and watch the TTS clock and go into deco or change your GF hi once you hit safety stop and chill out for a while. Pay attention to SurfGF works too.
I'm lazy, I just set the GF to what I want to dive, and dive as long as I want to. Pay attention to TTS and when I see deco getting to be close to where I know I'll be far too bored, then I surface...