the key to the weave, and the U turn (and really pretty much riding in general) is to look WHERE you want to go, not where you are going. dont look down at the cone you just passed (or ran over). look at the NEXT cone. once you get close to it, start looking at the NEXT cone after that.... once you get to a cone you should already be setting up the next one. same with the U turn. turn your head around as far as you can and look over your shoulder where you want to go