Final Fantasy XIV Database - Ffxivpro.com

DoT in a exp party is something I've always done once I got the element enfeebs. Any extra dmg you can do, you want to do even if it's 1HP/tick. If you're worried about sleeping the mob then I'd suggest you disband and find a new one. Only time you don't want to DoT is when you solo.

/nin is the main sub from the start of soloing BLM. It's not the only subjob that you can use to solo pre50 either.