I'm starting to agree about Diurnal. I'm at 51 so not sure how it works later on but Nocturnal doesn't seem as good even though I do like it for some reason. Having Regen is more helpful I think especially when you want to pop it on someone and then go into your inventory, or DPS or whatever taking a quick break from healing, where as using the shields they are pretty much gone 2 secs after casting it on the tank making it harder to do other things. I liked it because it was different but I definitely miss having regen.