Wow, this is further out in left field than usual for this board, since what you're claiming is that only someone who believes that that a BP&W is not any good for recreational diving should mentor someone who wanted to learn to dive a BP&W recreationally.
The illogic of this position aside (perhaps you were merely bad at stating your point, if so, please feel free to reword), why don't you think a BP&W is good for recreational diving, because there's a whole slew of BP&W-diving recreational divers out there that would disagree with you on this point.
Huh? Stairman's claiming that BP/W's are no good for recreational diving, and Jeff's saying that since he believes that, he'd be a lousy mentor for somebody who wants to dive one recreationally. Makes sense to me.