When can I switch Grand Companies

[REPROBEAN_CHILD]

All your maelstrom rank & seals will be stored and can be used if you switch back.

That's good to know. It'd be ridiculous that we'd have to reach the Max level for a chance to switch over...at the cost of losing everything and starting over

I want to ask though, why do you feel Flames would be better?

It's not that Flames are better, but I should have chosen them over Maelstorm. There's a reason for this, but it's rather "complicated" to say the least.