if u really want to know then read the manga, and Gai doesn`t give a crap about neji rite now hes to concerned with his presious lee. but neji can train himself Gai couldn`t teach him much of what he needs anyway. after all Gai is the one that showed lee how to open the gates so he could beat neji, he didn`t do anything fer neji to help him beat lee, even though he already could