There is one down side though; why when they spent a year refurbishing the existing tunnel did they make such a poor job of resurfacing the outside lane that is now the Northbound tunnel? I went through on Monday night in the RS and thought my rear DRC had failed, the rear end of the car was bouncing all over the place. So much so I was out in the cold when I got home with my torch checking the DRC was intact. But then did the same stretch last night sat behind a car and notice it wasn't just me! Yet the inside lane seemingly is as smooth as a baby's bottom like the new tunnel.
Shame on you TWPTA. That and there is a 40 limit Southbound and a 30 limit Northbound so very little room to do tunnel running in either unless you are in 1st or 2nd....