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The only dives in my binder-style logbook that have signatures are the ones I conducted as PADI class dives (OW, AOW). By the time I took Rescue class, I had already switched over to an electronic logbook. Nowadays, I log dives on my computer (PC download from dive computer) which gets synced up with my iPhone every few months.Hmm, okay, so it would seem that my sentiment is not exactly like I thought then. Do you have someone else sign off on them? My log book from PADI has the signature lines for buddies/instructors to sign off on.
I've never had to show any kind of logbook to a dive op. I suppose if they wanted some sort of record, I could show them the divelog on my iPhone or call up the "memory" function on my dive computer.I have heard that it is good to log because some trips wants you to prove you have a certain number of dives as well as if you want to be an instructor/divemaster etc. I fully intend on continuing my dive eductation and possibly be an instructor at some point so I am going to keep on logging for that reason
This is an amusing thread to read. Many, many years ago I decided I wanted to become a divemaster, so started taking the course. That was when it was explained to me that I had to present proof of 60 logged dives to complete. At this time, I had already been diving for 20 years and had done way over 1000 dives, but like a lot of people had stopped logging my dives after the first year or so. So one day I bought a logbook and commenced logging dive #001 that afternoon. It felt kind of silly, but it soon became a habit. I'm now up to #32xx, and have found those piles of paper logs to have been extremely useful. There probably isn't a week that goes by that I don't go digging around in my old logs to find an answer to a question like...
What week did the nettles start getting thick in Monterey last fall, and how long did it last?
What were the really great dive sites in Anacapa on the live-aboard trip last year?
What is the average deep water temperature in March in Little Cayman?
"I went diving with you 3 years ago and would like to have you take me out again next week. Are you willing?"
Get the drift? It's amazing how useful logbook data can be, though at the time you're making your notes you often can't anticipate how you will find it to be helpful later.