That seems like a circular argument. The feat lets you run faster than the normal rules allow, but you say it doesn't work, because the normal rules don't allow you to move that fast? I don't think that makes logical sense.FCWesel said:
Stalker0, I appreciate the comments but actually the book does say that you are incapable of 4x speed in Heavy Armour (table 7-5, pg 104 in my phb), and are limited to the max of 3x speed.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.