Advanced Topics in Priest Play

[MongoJerry]

My question, though, is do you keep renew active on anyone who's taking damage? I try to keep renew up at all times since if I just flash healed everyone when they dropped below, say, half health, my mana'd be gone pretty quickly.  Is the renew insignificant later on?

No, it's not insignificant, as I said directly in the guide:

[Renew]'s the first healing spell I cast on a person when they get hit, and it's also the spell I cast on people who have been hurt but are safe for the moment.

But, if a person is getting hit a lot, Renew by itself isn't going to cover all the healing and one will have to use Flash Heal and/or Greater Heal to provide additional healing.