Paul, I've found as you have, to get the instant throttle response you need a wood prop. Of the props I've tried Top flight had the least performance for my application. If you can find any Rev-up props they work the best of any I've found in stock form. The Zinger is a good prop to whittle on to improve performance, and it is just OK in stock form. We need a manufacture to step in and make a good line of wood fun fly props. Tom