After the S7 weapons that you could equip if you met the level and prof requirements, now the Advi nano sheet made me wonder.
The morph nanos are "unique" per line, and the buff effectively cast depends not on the skills, but on the level.
So currently, you may have to twink or at least be decently equiped to cast Calia wolf at TL4 instead of wolf pup. After rebalance, there will be no need to.
Ok, for now, it's "only" the morphs, but if it's the direction FC is taking, I fear AO will loose what is making it different from other games...