http://www.youtube.com/watch?v=SmyW70DIMTwEP2 doesn’t really have any places you can freely accelerate via AHD-ing. Thus, think with portals!I wish there was some kind of “distance” achievement for portal. Largest distance in least seconds or something like that.
ABH.
Oh. Woops. Nothing like a newbie totally messing up an acronym and putting it in a video 
Cool vid,But ABH is useful for some parts of Portal. Some guy in the speeddemosarchive forum did a SS run, and used ABHing every map almost.
That was my first speedrun I watched 
And, runner is professional ABH-er.