The bit between bottom of Dill Hall lights and the roundabout leading on to Junction 7.
I'm bemused by the 'No speed limit' decision ... only very short and lots of bumps there. If you heading to the roundabout have to break as you come to the bend; the other way is an incline and traffic queued up as you go over it. I feel 50 miles per hour would be adequate. Doesn't make sense to me.
