I think mr_v is pointing out that there may be more to safe DPV use, if the prerequisite for even being eligible to enroll in a DPV course (in this case, cave DPV) is so high. 50 cave dives is halfway to your Abe Davis award.
If using DPVs were that simple, surely all new cave divers would be allowed to take the cave DPV class as soon as they were certified at the intro/cave 1 level.
If using DPVs were that simple, surely all new cave divers would be allowed to take the cave DPV class as soon as they were certified at the intro/cave 1 level.