Furner:as a widely respected and supported organization, PADI has the power to set the facts straight regarding back-inflate BCs. Some instructors dont even know the difference between the myths and facts of BI BCs, and therefor scare their students into never trying one, and then cause those students to continue to spread myths, and further, cause these students to also not trust a potential dive buddy who may use a BI BC. Personally, I experienced several misinformed divers on my recent boat dives, one individual was informed by his OW instructor that BI BCs are only for tech divers and they will cause many problems at the surface. I let this person try out my DR BP/W, and let them see that a properly configured, fitted, and utilized BI BC is no more dangerous than a jacket BC, and actually less dangerous when used properly.
I don't think it's PADI's roll to extol the virtues of a particular bit of gear. They teach students what BCD's are for and how to use them. End of story -- as it should be.
For the record, PADI does not mandate the type of BCD you are supposed to use in training. If a shop or instructor decides to teach in a Holgarthian rig then nothing is stopping them.
R..