Check this page prior to race days for up to date waxing recommendations!
In addition, Toko has a bunch of local reps/skiwax buffs who are testing at the venue before every local race- you can check out their wax recommendations here.
Toko also offers waxing clinics with their reps thoroughout the season at various locations, it's definitely worth knowing how to wax a pair of skis correctly so you get the best possible results and you don't damage your equipment! Check out a frequently updated list of clinics here. In the meantime, take a look at the video archive of instructional videos for Toko products.