There’s been a lot of discussion of this topic on the Laser 2000 forum (a class that needs it more than the Wayfarer!).
See, for example:
http://www.laser2000.lasersailing.com/chat/topic.asp?TOPIC_ID=1154&SearchTerms=masthead
If you do a ‘search’ on that forum, e.g. for ‘masthead’, you’ll find more threads.