After Sense detected my AC, I noticed it short cycling. My thermostats (3 zones) had a non-adjustable swing differential of 0.5 degrees (e.g., if I set it to 75, it would turn on when it hit 75.25 and off when it hit 74.75). I immediately purchased new thermostats where I set the swing differential at 2 degrees. Check out the difference!
36 hours with old thermostats (High on Monday was 97, High on Tuesday was 87):
36 hours with new thermostats (High on Sunday was 90, high on Monday is 91):
I now have fewer cycles and longer breaks between start-ups, which should help my system last much longer. I also have much longer run times, which should let it run more efficiently, and has helped significantly with indoor humidity (my portable dehumidifiers are running much less).