Search results

  1. boulderjohn

    What would you do? AITA?

    As a customer, my expectation would be that I would eat it, and I wouldn't pursue anything. If I were the operator, I would offer some sort of compensation, probably a credit. Years ago I used an operator that on two separate occasions gave me a full refund because of problems on a dive. I...
  2. boulderjohn

    Modified ratio deco

    At the time I did that class, I was also in contact with Jarrod Jablonski of GUE. He told me exactly what you described, implying that UTD had, indeed, gone down a different path.
  3. boulderjohn

    Modified ratio deco

    With UTD, we had one and only one way of calculating dive profiles, so that is the way they did it. There was no choice to be made. Andrew Georgitsis set up the rules for the study. When he announced the study, people were excited, but that excitement waned among some of the more scientifically...
  4. boulderjohn

    Modified ratio deco

    I don't know what UTD is doing now, but that was very much the case when I was with them. We were required to do all dive planning with the UTD ratio deco program, and nothing else was allowed. This was true even though we were diving at altitude--we were told altitude was not a factor in...
  5. boulderjohn

    Lower Back Pain

    My point was you just won't know who is right. I was once plagued by numbness and tingling in may hands after a big dive weekend. I knew it wasn't DCS because I could make it go away with hand and arm movements. It kept getting worse until some of my fingers were almost constantly numb. I went...
  6. boulderjohn

    Lower Back Pain

    This is more of a generic response rather than to this specific quote. The question is this--how do you really know what is right? I had my first knee surgery more than 40 years ago, and I can't estimate the number of orthopedists I have had in the intervening years leading up to my present two...
  7. boulderjohn

    Negligent homicide: Swiss diving instructor convicted over student's death

    Why did the diver go to the surface? We don't know what happened, but it is perfectly possible for a highly skilled diver to have this happen under the right circumstances. It happened to a former instructor of mine, a TDI tech instructor; UTD tech instructor; and cave diver. He was at 100 feet...
  8. boulderjohn

    Negligent homicide: Swiss diving instructor convicted over student's death

    The standards call for him to assess the student's overall ability to do a dive. The courts said he did not do that, so that means that the instructor did not meet PADI standards. As I read it, the student had the prerequisite requirements for the class, but that was not enough--the instructor...
  9. boulderjohn

    Negligent homicide: Swiss diving instructor convicted over student's death

    The second sentence was not made by the court, as can be seen in the full translation. The statement that PADI's requirements are "so weak" was made by leadduck, not the court. The court did say that PADI's requirements call for an assessment of the student's ability before the dive, which was...
  10. boulderjohn

    Negligent homicide: Swiss diving instructor convicted over student's death

    I thought I would provide a Google translation of the full article. .......................................................................................................................... A diving student dies during a course in Lake Thun. The Bern Higher Court finds the diving instructor...
  11. boulderjohn

    Negligent homicide: Swiss diving instructor convicted over student's death

    To add to the puzzlement.... The victim was an instructor, so he must have finished AOW, which further means he had completed the deep dive requirement of the AOW certification. That dive is also the first dive of the deep diver specialty. Now, that dive is shallower than 100 feet, but we are...
  12. boulderjohn

    Negligent homicide: Swiss diving instructor convicted over student's death

    It is hard to tell exactly what happened from the article, but there was more to the verdict than in the OP summary. The accused instructor was said to have not been responsive to signs of difficulty and conscious signals made by the victim indicating trouble. He looked away from the student and...
  13. boulderjohn

    Fins have used a pair of split fins and need something better

    There are two distinct ways of doing a back kick. I use the sidewall as the propelling surface, and the Quattro sidewall is as big as the Jet's.
  14. boulderjohn

    Fins have used a pair of split fins and need something better

    That's news to me. I don't have any trouble.
  15. boulderjohn

    Error a death off Ulua Beach, Maui, has me wondering about scuba safety

    I don't know how recent this change can be, since I have been over 70 for 5 years and have had DAN insurance for all that time.
  16. boulderjohn

    Error a death off Ulua Beach, Maui, has me wondering about scuba safety

    Dive agencies train and certify dive professionals (divemasters and instructors). They do not control the conditions of their employment, though. A local dive operation typically employs divemasters and instructors, and they tell them when to work, where to work, and how to work. Some employers...
  17. boulderjohn

    Error a death off Ulua Beach, Maui, has me wondering about scuba safety

    By far the most common reason for a scuba fatality is a medical issue, like a heart attack. Heart attacks are also the most common cause of death in bowling and golf. Have you heard of bowling alleys or golf courses going out of operation because a customer had a heart attack?
  18. boulderjohn

    Flying after diving if computer shows all compartments cleared?

    The maddening thing about these studies is that after testing the individuals regularly while they were diving, they waited 24 hours to do the testing before flying. they found all of them to be bubble free at 24 hours. Why didn't they test them at the 18 hour mark, which is when DAN Americas...
  19. boulderjohn

    Entry BCD

    The typical ScubaBoard BP/W solution works well here. I will offer slightly different advice. I have exactly what some people have advised--an aluminum backplate for travel and a steel for colder water, but you obviously want to start with only one. That makes sense. In that case, get an...
  20. boulderjohn

    Riding GF99 instead of mandatory/safety stops

    What a lot of people do during these discussions is make references to recent research to support their positions. Many people find that more effective than simply insulting the people who are disagreeing with you.
Back
Top Bottom