There's always a set of these somewhere on the A38, set to 50mph with the obligatory "this is for your safety" crap that normally gets spouted.
I just go through them at 55mph on the speedo, do that all the way to the exit. No problems so far.
I just go through them at 55mph on the speedo, do that all the way to the exit. No problems so far.

don't think they signed it either at the time), was'nt until months later i knew what SPECs were. Never heard anything about it and consider myself really lucky, i might have been saved by a lane change as this was a loooong time ago before they sorted that issue.