Congrats on the guide it's excellent.
I decided early on that I was aiming for a 'pure' empath build with my character. I had a moment of weakness when I went for the blast snipe power but I won't do that again.
My theory on 'slotting' is that you can improve the end and speed of the skills via other methods (hasten / stamina), so i've slotted all heals in the actual powers. This at least at the lower levels has paid off massivly. And it allows you at later ones to 'rebuild' to add end reducers and speed ups if required.
Heal other seems to be the bane of any end effeciency, and having to use it means i'll be fighting the end bar for the entire battle. If people stay in the aura, it's quite possible to walk out with a spotless team and > 50% end.
Something that's kind of funny, is that inexperianced players have a habit of running away when they're injured. Which means you either need to chase them down to heal them (thus risking the rest of the team), or let them fend for themselves.
I took rez as early as i could and havn't looked back. I've pulled off a few 'combat' rez's now and they've been worth every point of end. Obviously it's good to stack up with end inspirations if you're going to try that