For me when I don't level sync it's cause I want to keep my skills caped and I don't have the time to go out and skill up cause I have baby to take care of. So I try to make the most of my play time as I can now. Only times I sync is for LS pt's or a pt I made myself and since I know others don't like their skills to be to low I try to 5 lvls above me for the melee 10 above for mages. And I can understand about some ppl not wanting to lost haste gear or acc in a certain spot.
Lvling Dnc atm mostly solo and keep getting invites for dunes pt. even with search comment saying "Exp pty no thanks". Told one of the ppl didn't want to lose Nin sub cause didn't have H2H for Dnc anymore, would only have one dagger" Said back..."Idc come lvl sync"
From ppl wishing to do/make lvl sync pt's I wish they'd learn to read first before sending tells.