Good question. There are a couple rules to passing. If your defending your position your are allowed to "zig" but you cannot "zag" which is to say, you can make 1 move.
If you are going for an overtake, you must have at least your front tires up to the next karts steering wheel. Lets say I had my front wheels to his rear wheels and I attempt to make the pass but if he keeps the racing line and we crash in the corner, it's my fault. That's why I backed off a couple of times. We don't have mirrors so you cannot see what is going on behind you.
#16 is actually a very talented driver and mechanic, he's just getting old
![:P](../../smileys/tongue.gif)
In all fairness I didn't set myself up very good because I should have been able to get around him earlier in the race. Gotta give him credit because he has won 7 championships, and I owe him everything because he got me into the sport
![:)](../../smileys/smile_new.gif)