Bard's Shirt (Relic) or Relic+1 - which one first?

[Bardo]

One thing that I don't see being talked about is the value of VIT.
If you've watched the Twintania kill video, the lowest HP value on their team was 4200.
Some of the unavoidable attacks were bringing them down pretty low.

My suggestion would be to +1 your Relic so that you're not bringing down your group's Limit Break damage, then get pants, then shirt, then hands/head before venturing into accessories.
Even though some of the accessories might actually be better for damage per Myth spent, ignoring that those pieces give you no Vit could come back to bite you in later content.