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
You can usually turn the deep stop function off if you want. If not, it will usually give you a stop half way between your max depth and the surface.Thanks for everyone's respond. As a recreational diver, I don't know how to plan deep stop before a dive. I always follow my computer's instructions underwater. I know how to plan maximum depth or dive time according to NDL by PLAN mode in my computer, but I don't know how to read deep stop duration or depth before a dive. Would you mind to teach me or provide an article or something for me? @jale That will be very kind of you. Thank you.
@DiveTucson Thank you. Would you please explain why you don't think it's appropriate? Or is there any theory to support not doing so?
how many deep stops can you fit on the end of a pin?A deep stop has no application in recreational (no mandatory stop) diving. It's value in tech diving is currently under much debate and that is why you are not getting solid answers to you question.
You would signal move up and indicate a depth.Just want to make it clear again. I'm talking about "deep stop", not "deco stop". And my question is how to hand signal "deep stop".
I'm not an expert on this at all but, when I got sucked into a lot of reading about RGBM and different deco models, there was a lot of reading regarding deep stops and it seems the general consensus based on some studies is that deep stops are not as safe--something to do with offgassing fast tissue but continuing to saturate slow tissues, which results in your having less saturated fast tissues once you ascend, but at the cost of having loaded your slow tissues even more than you would have had you just come up for a shallower stop.
Then again, from my (cursory) understanding, you have to account for whether or not your tissues are fully saturated (since, at full saturation, holding a deep stop won't make your tissues take on more saturation, so then it's not as much of an issue but again, depends on your dive profile).
For what it's worth, I'm a recreational diver and I have my computer deep stops turned off.