You are a newbie and want a good suggestion? An old timer made this suggestion to me, and its worth considering. Get rid of the spinner and get a Harry Higley aluminum prop nut. They still look good, but they are incredibly easy when it comes to prop changing and as a newbie, you'll be changing prop every now and then. A spinner might give less drag, but does it matter in a trainer? I love the prop nuts, they look good enough, and make it a snap when it comes to changing props.