Robin, I too take this opportunity to declare my recent purchase of a new (second hand 2015) BC23, number 027. Previously "Jaggie Thistle" I've renamed it "Lunar Blues". I've been out in Chichester/Langstone harbour four times all in benign conditions and so haven't had to reef yet, but I'm thinking of trying poking my nose out into the Solent on Wednesday and want to make sure I'm ready for all eventualities, and reefing is concerning me. Almost zero wind today (I hope) will allow me to practise reefing while on the pontoon. And I too have exactly the same problem as you with those stray lines with the sail down.