My favorite thing about Level Sync was that my higher lvl skills helped me when I sync down to a lower lvl...........oh wait. I meant I LOVED how I couldnt get any skill ups while level sync cause they capped the skills at that lvl! Good idea on paper but unfortunately SE came up with it......I guess the main problem with this brutal system(as far as XIV is concerned) is a lvl 45 Lancer could sync down to a single digit level with a buddy, jump into the Skull Valley behest that has a lvl 15 Pugilist(to bring the heat?) and get amazing sp per kill. The Fatigue system will stop them from being 1-50 in a week but still its a system to exploit imo.