I purchased an Artin two lane oval with 2 stockers a couple of months ago. I have since expanded it to fill my 8' x 3' table (about 15' or so in track).

Before I expanded I noticed that the inside lane seemed to be that fastest lane (by a couple tenths of a second). Since I expanded the track by about 4' my lap times have been about the same but the outside lane seems to be the faster of the two lanes (by about the same margain as before).

I have also noticed that my newest stockers are a bit slower than my older ones. I assume this is because the old ones are more broken in.

Anyway I am having a blast with this hobby and forward to expanding even more .