MichaelMc
Working toward Cenotes
In terms of getting AOW so dive boats let you on, SDI (or SSI) 'AOW' recognition card is an option. Not the universal front desk recognition as Padi, but more than GUE. It takes 4 complete SDI/TDI specialties and 25 dives. Not cheaper than Padi AOW, but you may feel better about the card.
"Complete four SDI, TDI, or ERDI Specialty Diver courses or equivalent; only 1 course without dives, may be credited towards the SDI Advanced Diver development program, with the exception of SDI Computer Nitrox"
After Fundies doing something like SDI/TDI deep, nitrox, intro-tech or sidemount, and night or navigation for the SDI AOW would then make sense.
"Complete four SDI, TDI, or ERDI Specialty Diver courses or equivalent; only 1 course without dives, may be credited towards the SDI Advanced Diver development program, with the exception of SDI Computer Nitrox"
After Fundies doing something like SDI/TDI deep, nitrox, intro-tech or sidemount, and night or navigation for the SDI AOW would then make sense.