Attack Speed Debuffs - Question

[Condar Tarsonia]

Greetings again all!Well my last post got lots of great feedback from the community, so I was wondering if you could answer a quick question... I'm 37 now and have the single target attack speed debuff, and the group attack speed debuff.  I was wondering during a group earlier if I cast both on a particular target, will they stack, resulting in greatly reduced attack speeds, or will the higher of the two overwrite the other?

[Ordate]

They will stack, up to the cap on slow which I believe is 50%.

[Banditman]

They definitely stack, though with the changes to how Haste actually works, the exact cap is pretty hard to define.The spells previously were simply "percentage" reductions, and the cap was 50%.  Now, they are raw Haste reductions, and how they cap is pretty much unknown, unfortunately.