This is the PvP skill supposed to counter the sprint-fest for heavy DPS classes who are bound to get kited (DRG and MNK).

Weapon Throw
Delivers a ranged attack with a potency of 50.
Additional Effect: 20% chance of inflicting Heavy when dealt from behind for 6s.
Additional Effect: Removes Sprint effect when dealt from behind.

Enhanced Weapon Throw: Shortens recast time to 60 seconds.
Enhanced Weapon Throw II: Extends duration to 12 seconds.
Enhanced Weapon Throw III: Increases effect potency to 40%.
This is probably the most sought PvP skill for us altogether with most (if not all) of the enhancements.

Yet this skill becomes useless with little PvP experience, because the running target can run sideways (strafing) making it impossible for the following melee to gain angle and get a "behind" position, whilst the runner doesn't receive any running penalty, rendering this skill a bare ranged hit of potency 50.

Even if the runner makes mistakes or has some instants where he seems to be facing the opposite way from you, thanks to the delay it still becomes a pain to get a "from behind" hit to experienced players.

I think at least one of the two "behind" additional effects (remove sprint?) should be non-positional for the skill to be decent.

I also believe the skill description is wrong and should be "inflicts Heavy with a potency of 20%"?