Wayne,..I've heard that they're fine for spares, but you can't go wide open,...they're only designed to get you back to the ramp. This means that you'd have to get your damaged prop fixed immediately so you could get back to runnin' and gunnin' asap. If you had a spare aluminum or SS prop, you could use that for as long as you needed and get the damaged prop fixed at your leasure,...that's the only drawback I see. It's deffinetely a "Temporary" spare,...but it would work fine!!
Mac