I certainly didn't have that *perfect* logbook at first - especially when others are in charge of it and they could care less about erros or neatness or anything else about it. I keep my own records and like you said try to keep meticulous records. I had to scrub all of my books many times over but in the end I've got everything smoothed out to. I agree with LucasM on this one - sit down this weekend with a good calculator and a spreadsheet and start pouring over those numbers.
USMCFLYR