Could you have a look through your sailing kit and check you have not developed an extra P&B blue kite in a P&B blue bag (possibly with an additional boat breaker).
This one has recently been confirmed as still AWOL, last seen at the nationals.
Great news - Both Kites have turned up.
So John is now simply missing a boat breaker with very nice new Allen parts on it. The cleat looks a bit like this.
If you see it in your kit please shout.