The STAR Beta kick waxes are a race-service line of fluor-free kick waxes for old snow. These waxes have klister in them for extra tackiness and durability in old snow.
The Beta kick waxes build kick quickly with additional layers, and rely on a great deal of tackiness to produce an immediate kick engagement. Start with a thin application and build thickness gradually. Combining layers to bring the kick up is normal use - for instance, a little M26 mixed into an M21 application can make a big difference.
M21 is the most common race wax in the line, and often runs much colder than the range printed on the tin, especially when tracks have seen heavy traffic since grooming.