Ya dooood! Loudon's where it's at! :P
Marko, for what it's worth, my SV doesn't do much more than 125 or so, but I still have a blast, even at the "bigger" (than Loudon) tracks like VIR North, NJMP, etc.
Shit, I used to take my EX500 down to VIR North... I'd be clicking into 6th gear before the exit cone of the final turn and at top speed (about 105-110) before the beginning of pit wall!!!

After that I'd make a sandwich & have a little picnic before I got to the braking zone for T1