Warmace

The Arbalest Hold-Wall has the property of 1.2x Attack Speed. When using it, however, I've noted no change in speed compared to a Fine Arbalest. I don't currently have the means to measure this with great accuracy (I'm using a stopwatch) but the time between one attack and the next, and one attack and the two that follow (starting stopwatch after un-pausing game that was auto-paused by attacking with the Arbalest from stealth, and stopping when the next [or next-next] attack occurred) were indistinguishable between the two weapons. Has anyone else observed this, or gathered more accurate data?