Well in most cases it's not like we have much options to choose our stats anyway. There's a little bit of customization in choice of materia and which lore pieces you target first - but for the most part you'll just be wearing whatever is the best/highest ilvl gear you have access to.

If it so happens that you're at 400 at the moment then so be it - it's not really a big deal and to my knowledge we don't have critical sks breakpoints to hit, so anything goes.