The standard airhole on the RM2 is 1.2mm @WARMACHINE 
For me, that yields the PERFECT mouth to lung air setting
I have not widened any of my RM2s - because I love it like that
I know @Alex widened his - I think to 2mm - for a restricted lung hit
	
		
			
		
		
	
				
			For me, that yields the PERFECT mouth to lung air setting
I have not widened any of my RM2s - because I love it like that
I know @Alex widened his - I think to 2mm - for a restricted lung hit
						
					
				
 



