I did the nitrox with SDI. Got a very nice SDI table that I still carry. Can use with all sorts of mixes. Has mods for 1.4 and 1.6. You can buy the SDI table. I added a row for 1.3 since I like to stay 1.3 and below. My LDS banks 30% and that is my generic mix. Since I never know when a dive might be canceled and how deep the next one will be I like 30% because is covers everything I do.
