Posted by msblucow on March 05, 2001 at 08:09:53:
In Reply to: Re: DIR demo posted by kelphead on March 05, 2001 at 02:21:28:
Kelphead wrote: "apparently, there may be TWO schools of 'dir' thought???!!!"
I didn't get that impression. JJ, when answering questions about modifications of the DIR system or variations in equipment that people already owned and were reluctant to give up, was very careful about explaining the ramifications. For example, it's ok to use a computer as a backup, but you shouldn't rely blindly on it. You need to know the tables, keep track of your bottom time and depth so you can always calculate your NDLs in case of a computer failure. A console is ok, but be aware that a large paddle-shaped console is going to create drag and that the information won't be as accessible as if you had a compass or computer (or bottom timer) mounted on your wrist.
Basically, JJ just reinterated that, yes you can get away with some gear modification and have a perfectly fine diving experience, but no, you won't be optimizing the dive or creating the most stress-free diving experience. And of course, when you get into the more extreme kinds of diving, in their book, you can't modify the system and still maintain the level of safety needed to complete the dive without endangering someone's life.
A lot of DIR is just common sense. If you standardize your equipment configuration, have reliable equipment, dive with a like minded buddy, have good communication, think ahead, and be prepared for the unexpected, you'll have a much better time in the long run.
Post a Followup