Im 18 MRD and I bought lvl 30 weapon. Doing 100 dmg on normal attacks. Repair cost so much I bought a lvl 20 weapon and do 100 dmg on normal attacks. I think you grow into your weapon but you are guaranteed the best if you pick a weapon above your skill level. I started with lvl 22 wand for conjurerer at lvl 1 and i dont see anything different except the repair prices.
FFXI Alexandar 51 SUM Ramuh 50 SUM 53 THF WoW Malygos 80MAG 60 WLK The forgtn cst 80 MAG 73 WLK