Storm:
A format I would have suggested would be for 5 pool sessions (advanced skills based) one for each dive scenario, then the open water dives as a check out dives. The same format as the OW, just with skills (example buoyancy control while performing buddy breathing) developed while task loading, and new skills introduction. (for example, floating an SMB)
And i'll argue that marginally greater training means nothing in terms of helping prepare a student when the ***** REALLY hits the fan.
I used to teach martial arts, and while people started getting the mechanics of a particular skill after a day or two, it takes a LOT more training before they are able to perform the same skill in a semi-live situation (ie, full contact/no pads). An additional day or teaching would make no difference either; what the student needs is repeated and long-term practice. After a certain amount of time, it clicks and then it stays with them forever.
Handling underwater problems calmly is related to 2 things: level of comfort underwater and individual ability to handle stress. The latter is innate, and not much you can do about it. Re. th former, additional pool time makes a small difference, but neither gets you anywhere close to being *ready* to deal with it - no more than practising a lock for 2 days, instead of 1, makes you ready to apply it in a real fight.
I'm a water baby - been swimming since Iwas 4, used to be a competitive swimmer, could skin dive down to 100', have swum a 50m pool with my hands and feet tied behind my back, can still swim 5k without too much trouble. One time, I was seriously in trouble inside a wreck that I had dived 30-odd times already, and sure that I was going to die. Despite having 800-odd dives at the time, it took a *lot* of willpower to stop myself from going into blind panic, and to work on finding a solution instead. Moral of the story - if 800 dives and absolutely no nervousness in the water *barely* proved enough, what do you think a few additional pool sessions will accomplish?
So let's come back to earth a little bit here, and not assume that a few extra sessions will make us all capable of diving the Dorea. It doesnt work like that.
It is amazing that you hear people forever moaning about diver training standards, and then you realize that an average diver only dives 5 times a year or something like that. Yeah, additional training is going to make a huge difference in these cases.
For the vast majority of the diving population, a *properly-taught* OW course and regular diving is all that is needed to build and improve dive skills.
Vandit