@_Pulse: Ok, you're from the UK, so either 17.5 blinky, or 10.5 blinky. I generally think 10.5 blinky is ok for someone who is average at say Stock TC. That track is on the tighter side though, compared to what I'm used to. Now, you say that no one else at your track runs pan cars. Well then, I suggest you pick whatever is most likely to get them racing with you. Generally that is the slower of two options. But also think about what the typical ability level is at your track, and who you might like to race against, who is most likely to join you, etc.