Dive Log?? What the heck is that?
Call me lazy--I haven't actually logged a dive in many years. Don't get me wrong, when I first learned to dive I logged everything religiously. But it eventually got to the point that I stopped looking back at it, and logging was just a chore, so I stopped. I recently started carrying a Sensus Ultra, but that's it.
However if my understanding is correct, BSAC is much more serious about the use of your dive log as proof of experience than clubs/agencies in the US are. I've never been asked for my log book as proof of anything I've done in the past.
Brian