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					Originally Posted by  arh1a
					 
				 
				Do you mean cut down the splines in on the servo as they connect directly to the valve block. 
 
What the recommended Hitec servo I should purchase, still the Hitec 5645? 
			
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 If you go with the hitec it comes with a red 4 arm servo horn.  You have to cut it down a bit to fit in the valve head.  You'll see once you try and install it.