[Jamo]

Nice safety advancement, but given that it will still allow a wingnut to loosen enough to let a wheel wobble...I'd still use safety wire.

Rob...I agree with dblfugly. The wire should not be depended upon to hold the wingnut, even though it's going to help (even if you use thicker than .32). Rely on it more as a visual or tactile quick check. I leave mine slightly slack as well...so I can touch it quickly on a walkaround in between track periods or stops on a cruise to see if the wingnut has backed off at all (thereby tightening the wire).