There is a few of us from the shire here mate, should go for a Natio run some time.
We used to ride natio 5 times a week , every day after work and actually used to run my superbike in after engine builds after work through there. I was the manager of the bike shop in Sutherland in those days. They tell me its very heavily policed now....i have seen many destroyed bikes in our workshop of those who ran out of talent !
Natio is 15 mins from me (Stanwell Tops side). Speed limit is now 60k's all through it (even it the straights), not as much fun now as in the past, This is the typical knee jerk reaction after a few gladiator dressed sports bike riders come unstuck. Cops in cars hiding in bushes on alot of weekends so during the week now is more relaxed.
Lady Carrington was one -way alright, the OTHER WAY! It was always east-bound only. We used to time ourselves in our rally cars. My old BDA might have hit 100mph in there...so said the Halda.