I am updating my numbers on the airlineapps dot com site. Have any of you used that site and had a hard time with the numbers they come up with reconcile with the numbers in your logbook? They are not the same.

The differences are sometimes small, sometimes large. I know that on their site there is no doubling up of time. I.e - there is no such thing as 'dual received' and 'PIC' on the same flight. This can be reconciled as there are only about 17 hours of doubled up time (ex. aerobatic instruction in a S/E Land for which I was already signed off - this is both PIC and Dual Received as I understand it).

But the M/E stuff is much harder. I have literally only about 5 hours of actual M/E PIC in my whole career. So when I add up my columns, it should come out to the right number. But on their "Totals" page, it is giving me several hundred hours less than if I add up the columns in my paper logbook.

What gives? Have any of you ever run into this sort of problem?

I have never tried to pad my logbook or do anything non-standard. I log every single flight - every leg. My books add up. Their electronic adder makes some changes.

Ideas?