I applied SS1, SS2 and SS3 intermediate plans to my calendar a few months back, and did some rearranging to make sure I got 3 weeks on, 1 week off schedule.
Today I applied SS3 plan for a later date to compare the workouts to what I had entered a few months ago. To me it seems that some of the workouts and durations are now a bit different in the SS3 plan. Am I imagining this? Or did the SS3 plan change in my Training Peaks library?