I admit that I'm full of it. I just looked it up. Although in practice I've only ever seen air sharing taught with a short hose, page 69 of the current PADI OW manual says,
"Depending on the alternate air source configuration, the donor (diver supplying air) may give the reciever (diver getting air) the alternate, or may give the receiver the primary air source (the one in the mouth) and switch to the alternate. The important thing is to agree upon the procedure before the dive."
Mike, do you teach everyone in the class to do the same thing, the same way, using similar equipment? Do you allow your students to use a short hose if that is the configuration they show to class with? I'm just curious.
I'm in the middle of the internship part of divemaster training and going through, "If you're going to work with us you should show up for pool sessions wearing gear that we sell at the shop." As much as I love the offending gear I admit that they have a point. They want to sell gear. They don't want me confusing their students with gear that the shop doesn't carry. I'm now trying to decide which fins to wear as LDS spokes-model.
The hippie in me thinks standardization is a bad thing, but I can see the virtue of uniformity in a class situation. So Mike, do you allow people to take your class in gear that they bought elsewhere? Do you have rental gear available for pool sessions? How do you handle the gear question?
MikeFerrara once bubbled...
I'm sure you already know all about PADI's take on it but there is nothing in PADI OW or AOW standards that specify hose length or which reg is donated. The point is there is nothing in the standards that prevent an instructor from teaching air sharing one way or the other. I was responding to a post that suggested that donating the primary was not consistant with recreational standards. I do all my diving and teaching using a long hose.