I am okay with small pulls, as long as the tank is moving quickly between pulls.
If I am in "expert" roulette with a tank who is stopping and waiting between pulls or boss fights, I will use Shadewalker on the tank and pull myself.
I was in Gubal Library Hard with a tank who would stop for between 15-30 seconds between each pull and look at each party member. And he would recast Protect and Stoneskin on everyone (Paladin tank)
Never figured out why.
After the first boss I got tired of it and used Shadewalker every time it was available to pull things.