ghostdiver1957:
Logbooks - in my opinion - are worthless.
Logbooks - in my opinion - are used by very few real divers.
The next most common person carrying a logbook is the faker.
But most real divers have stopped logging stuff long ago... it just takes away from the diving.
I have personally done more than 1200 dives... and I can honestly say, I have never went back and read my logbook in the last nine years....
You're welcome to your opinion, Ghost, but I disagree with you. Logbooks are far from worthless. And real divers use them. They can be as valuable or as worthless as the diver filling them out.
Divers who dive all over the world, in different water temperatures using different gear rigs, often find that what works for one set of environmental parameters doesn't work well in a different environment. Undergarments and amount of weight needed come to mind, but it also goes to reels, SMBs, types of surface rescue items carried, and other variance.
If I have a trip to Florida or Palau coming up, I scan the log to note what I used in terms of gear and weight the last time I was there, which may have been 8-9 years ago or more, to plan for current expected conditions. Its way different in either place than here along the northern Pacific coast. My rig changes accordingly.
I log all my dives. For trips I write trip reports, detailing diving costs, transportation options and arrangements, captains/boats, phone numbers, gas prices, GPS coordinates, cost of helium/O2, fill sources, addresses, cost of food, which restaurants sucked and which were great, transit times, miles on vehicles, hours on scooter batteries, etc. I use that data when planning future trips.
And when I sat down to interview Advanced Trimix Instructors, all three of the guys I interviewed asked to see my logbooks. In at least two cases, that I know of due to questions we reviewed some days later, the instructors read the logbooks as well...they didn't simply glance at them.
So Ghost,..."real divers" do use log books. Real divers log stuff. Real divers don't want to re-learn the same lessons nine years later that they should have remembered from the last time they flew to the south Pacific.
The fact that YOU don't use your log book doesn't make logging dives a universally worthless procedure.
Dive safe,
Doc