User blog comment:Lord Loss/Discussion of the Week: Lances/@comment-4818141-20120615010751/@comment-1011548-20120615065744

I think there's also 'soft' and 'hard' headlocking, although I'm not completely sure what the difference is.

It's quite a common tactic in Frontier, because of the amount of grinding that game gets you to do - people find the most efficient way to hunt a monster over and over again. Although it might not be specifically headlocking, I've seen people have a huge run of staggers going with almost all the weapons.