I am going to use a wide blade 19/6 also on my dz the 18/6 turns at 10,000 static which is a little high glad to hear you like the magnum fuel i told you so HA HA you might give buzz a email or call and tell him the results he wants to know and will talk at length about his fuel and the DZ . Very knowledgable gentleman who makes some dyamite fuel for any 4 stroke by the way Earl i answered your private message on the turns out on high end About 1 and 1/2 max .