the state of quad-jumping is fascinating bc there seems to be a weird pattern where you have to sacrifice one more common quad to do one less common quad. daniel grassl, one of the few skaters who can do a 4Lo, has never done a 4T in competition. shun sato, the only current japanese skater with a 4Lz, hasn't attempted a 4S since he was 16 years old. nikolaj memola can do both a 4F and a 4Lz, but not a 4T or a 4S. out of everyone who has done a 4Lo in the past two years (excluding russians), only ilia can also do a 4F. the average number of different quads someone at the top level can jump somehow evens out to about two either way. it's just that sometimes we have the gogolevs, who can jump 4T and 4S, and sometimes we have the memolas, who can jump 4F and 4Lz. quadg0d georg, who can jump all six different types of quads, is an outlier adn should not have been counted.