The only problem you may have is if the ducer scatches the 5200 then the oil can get in the 5200 and break it down chemically. I have seen 2 ducers where the mineral oil was leaking out from the seal area and when the owners took them off the 5200 was deteriorating. 
  
But I know of 5 others with the same set up and they have not had a problem.
		 
		
		
		
		
		
		
			
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				Tis better to be quiet and thought a fool than open your mouth and prove it!! 
  
1991 V-20 cuddy I/O 350 volvo duo prop,  1998 15ft Grumman 9.9 Johnson   
 
			 
		
		
		
		
		
	
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