Why would you want to change the setting? If the thermostat will hold plus
or minus 1 degree who cares? raise the set point. Screwing around with
the
anticipator circuit in the stat will only give you head aches.

I had a thermostat installed a few years ago in another home that gave us
the option of 1, 2 or 3 degrees. The reason I like it is I find it too hot
to set the therm at 80 degrees...but setting it at 77 as the minimum and
letting it go up to 80 before going back down to 77 is a lot more tolerable.
I would think a range of 77 to 80 would save electricity and yet be cooler
than simply setting it at 80.