this is not technically correct - You must then make two dives under the supervision of an instructor, or plan two dives if nitrox (or diving, for that matter) is not available in your area
The wording from the IG is "Its recommended that you conduct Enriched Air Dives 1 and 2 whenever possible.
However, when logistics dont allow them, you have the option to conduct
predive simulation exercises instead."
yes I am well aware of this - which is - er - basically what I said. Logistical problems being if nitrox or diving is logistically unavailable in the location. Gas analysis must be completed so therefore the dive centre in question must have some nitrox available but this could "technically" be a half empty tank that you can't dive with. I teach this stuff all the time, so please let's not get into semantics over the wording!! I understand fully the limitations of the course and why people feel disappointed with the new standards - I am one of them, after all!
Tables and calculations are optional if you have an out-dated set of materials (i.e. pre-2010 changes). I am more than happy to go through these if people request, but practically speaking, most recreationaly divers simply want to know how to use it on a dive boat, without the mathematics.
If my customers wish to learn I'm all for it - but I am disappointed with the new course.
Cheers
C.