There are other factors at play... you do not provide nearly enough information to determine what the factor was. 
 
Heres a question, when you noticed this did you immediately run to the forum or did you look at your buffs, try checking with titanium/sof/sod or anything? 
 
In circumstances like this involving mechanics that are used everyday on every server(ie crit healing), its useful to ask yourself "am I the first one to find this or perhaps I am being retarded?" 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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