I did a quick video in HS north using Blood Ember Gauntlets and Blood Ember Boots for fear kiting. I used SK Epic for my weapon.
https://www.youtube.com/watch?v=yZjWT9dj2uI
I started at 100% HP and Mana. After 6 kills, I ended the 6th kill at 100% HP and Mana. This was without taking any breaks between kills. I did not meditate at all.
This is an example of how strong clickies are when it comes to saving mana. For all of the people wary about clickie cast times, Blood Ember Boots have a 7 second cast time, and the gloves have a 5 second cast time. I was able to land them just fine without any significant issues to the overall session.