How do I do the "Hook and Throw" maneuver?

How do I do the "Hook and Throw" move in Assassin's Creed Revelations? I don't recall it from the tutorial. I need to do some for the Mercenary challenge Set 2.

When you're sprinting, with the hookblade equipped, tap B (or O for PS3) right as you approach your target. If you HOLD the button, you'll only do a hook and run, which isn't what you want. It takes a little practice to get the timing right, but it's pretty fun when you do it right. Side note: It doesn't seem to work on Janissaries. They always manage to avoid the "throw" part.

It's done in the same fashion as the Hook and Run move, only instead of holding your button, you need to tap it instead. I did the Hook and Throw a number of times during the tutorial on accident because I wasn't holding my button long enough to do the Run.