Although ski wax is designed for skiing, there are some who use it for activities that are completely different. An unwaxed canoe can require a bull weight of over 50 pounds compared to a well waxed canoe which can require less than 13 pounds.
The benefits of pure Fluoros increase as the length of race increases, humidity/water increases or dirt increases. It should be noted that in most every condition any FC Top Coat is better than using no FC Top Coat
One quirk about Fluorocarbon waxes is that they do not "like" hydrocarbon waxes (think oil and water). Fluorinated hydrocarbons (Dibloc LF and HF) are the link between them. They are a hybrid between the two types (hence the name Toko Dibloc).