yep, now I understand why, had to set the cruise control cause it is just impossible to keep the speed down to that manually, but that time of night even with decent lights it be risking damage, just too many roos.
it was very quiet out there so wasn't posing any problems, the truckies could see for miles past us on straight roads, most of them did however enquire by CB if everything ok and passed on their knowledge of the road and just enjoyed a chat for a few minutes.