Supposedly there's a setting in the computer that allows adjustment of both of these - initial set lowest and lowest. My recollection is that the RTP model will actually do cruise control set at 10mph and you can bump it down to 6mph.Did you know that you can set your '22 1250GSA Cruise Control to a speed that's about idle in first gear? While you can't "set" it to that low of a speed, you can set it to about 20MPH or so and then decrease the set speed 1 MPH at a time. I don't really know how low you can go.