thanks Breeze, I can understand the taper part and overtightening.  Was just confused a little about putting the plug in the right amount (wondering how to push a threaded plug in a threaded hole the right length and THEN tighten it)  I dont like overtightening anything.  It just seemed to me - that you would not have too much of a choice in how far to run it in - when its tight - you stop! - right?
Bill
	
		
			
		
		
	
				
			Bill