I have been searching to see if it was answered before, but I was unable to find it, so I will ask you all.  Do Detrimental Extension Foci increase the length of time that Challenge/Trial for honor stay on the mob (not worried about the recourse)?   Adding some extra hate for free to the spell would be nice, but wanted to know before I seriously started looking for detrimental extension focus.  Thanks. 
Edit:  Oh, yes I know there is that new type 3 slot to increase it by 1 tick, but I found that, at least on the beneficial one, that it will stack.
			
		

 
			
				