If your group can handle wall-to-walls, they're way more fun (as long as you're not the healer). DPS get to put out bigger numbers and the run goes by much faster. Most of my FC healers complain when I wall-to-wall in 50/60/70, and I understand that because it's way more stressful to heal bigger pulls. I do it anyway because I know they can handle it and we all legitimately do want to be out of there sooner rather than later, healer aneurysms be damned.

The trick is that I'm also a weird tank. I believe that Sprint exists to help people catch up to the tank, not for the tank to go full Sanic Speed as often as possible. So I don't pop Sprint when I'm tanking dungeons unless I need it to avoid a boss mechanic. (On the other hand, if it's an alliance raid, Alexander, or MSQ roulette? Sprint's getting popped as often as possible. Get that Syrcus Tower nonsense over with ASAP.)