The Zinger spinner will require a lot of work. You have to make the cutouts for the prop blades and then screw the nose cone onto the backplate with screws around the back parimeter of the cone. The design of these make the back edge of the spinner protrude about 1/4 inch back of the prop hub, like an offset to the rear.. The back plate is spun aluminum formed and not machined. When done they look cool and are light but be prepared to spend alot of time fitting it together. You will need to balance it when its done also. The pro spin spinner usually has to be opened up for prop clearance also. There more conventional in comparison with the Zinger but usually require work also. When all is said and done the True Turn sure does make a convienient exceptionally product.