We think of break in period in tanks run through the saw cause they are easiest to count. Husky measures it by run time in hours, which they list as 3-4. This goes way back to the 200 series saws for which they always recommended running them at break in RPM's, typically 600-700 less during the break in period. They suggested this for both new saws and rebuilt saws. Some food for thought there for guys who do builds/projects on these older saws and then go right to the max RPM's on the first tank.
So, the theory that AT is doing this is likely correct. The AT module does keep tract of run time in hours, minutes and seconds. Also, I lent out a 565 demo to a logger to run 10 thanks through it, and the total run time when he brought it back was around 4 hours. Kind of all adds up, doesn't it?