I also have a Vyper to log my dives, but I also transfer this information into my logbook along with other pertinent information (air consumption, activities, dive site, points of interest, gear config, etc)
Every dive, no matter how long or short is recorded and if a short dive the reason why it was cut short.
I also have another log created by one of our board members on an Excel spreadsheet who was gracious enough to share it that I use as well to track the same info (sort of redundant) along with additional information. A really neat spreadsheet.