The PADI "Self Reliant Diver" and the SDI "Solo Diver"Do you recommend doing the PADI self reliant or doing the SSI variant? I have done everything through padi in the past.
The PADI variant is for handling buddy separation. SDI is for planning and executing a solo dive.
At least one diving lake in the UK will only accept the SDI card to dive solo; the PADI SRD isn't accepted. You have to leave a page containing your information, where you're diving, your kit and your dive time. You must let them know when you're going in and when you've come out. It's restricted to open circuit only and, obviously, redundant gas.