After all of the fan fare over Pippin's world record dive to -500' it I recently found out that he inhaled compressed oxygen at -250' and that he has been doing this on many of his dives that he claimed were records in the unlimited class of dives. This is personally embarassing as I have talked about this as valid and impressive achievement to others based on the reports that found the use of bottle oxygen to be irrelevant. I thought the whole point of freediving was use the air that the diver took in at the surface. Pippin appears to be nothing more than a narcissistic oppportunist with big lungs. This issue raises the validity of the claiming world records based on dives that do not occur in an organized competition. Why have none of those people who were present spoken out? Bias and group pressure are very effective which is why these records should only count in competition. No one would accept a 100 meter swim done in practice or on ones own as world record regardless how it was measured. I am in agreement with Mayol that this type of diving is only valuable when it is part of research. I disagree with Mayol that there is no place for this to be recognized as a sport; but only if it is part of head to head or sequential attemtps such as in high jumping or platform diving competitions. Pippin's ability to go to -500' on bottled oxygen is pointless as we already know that the human body can withstand those depths. His ability to go to -250' is impressive and most of us will never achieve even that and I certainly won't. But this sport is a high risk activity and the increasing self -promotion based on the dubious practise of going out with a group of friends and then claiming to have achieved a new record only increases the risk factor while detracting from the sport. Finally, I find the use of sleds for decent and balloons for ascending to make these endeavors even more ridiculous. I thougt freediving was about swimming. The use of sleds and balloons makes it just another form of a static apnea dive while taking a ride. Big whoop. Only distance and constant ballast dives are an actual physical sport. Static apnea is just part of training; would you be impressed by somebody hanging by their arms longer than someone else and see that as a sport? Still a physical challenge like static apnea but not much of a sport is it? Competition is an important part of any sport. Freediving is misunderstood enough by the nondiving public now. I think it is important for the freediving community to protect the sport which needs to start within sport by those who participate in it.