Hi
I’m sorry as I don’t fully understand cruise control. However on our manual jazz si, I use CC an awful lot, even speeds of 30mph or just below upto my normal speed on motorways
I control speed from the button on steering wheel
The CC will turn off if clutch or brake pedal is touched (does not need depressing) and accelerator pedal, I can use that to go faster then release accelerator pedal, and speed returns to CC set speed (accelerator does not turn off CC)
Where I have used the brake/clutch pedal and CC has turned off, if I press the up button, the CC returns back to last set speed (useful when say coming across roundabouts etc, where you slow down/change gear, then just let CC take you steadily back to last speed)
The only strange thing I have noticed, is at 30mph in 5th gear, driving without CC on, a hill will cause it to labour but on CC, there is not the same labouring, and it cannot change gear
Many thanks
John