I have a very survivable character that can self heal if needed. That said, I end up pulling back and tossing a couple scrolls, then going back to dps again.
I know that when I am healing myself, my dps is lower.
On the total for the group, however, is the loss of time doing dps by each member when they pause to heal out weighed by not having a healer? Or asked another way, are 6 people doing doing dps and pausing to self heal better dps than 5 people doing dps while never stopping to self heal?