Sovrad,
I don't want them but they are there in our COS and anyone is entitled to do them, much like G day compensation. W patterns suit some, G day compensation suits others.
To get a W pattern sorted rostering have to give you two requests, one for each pattern BEFORE I even get my first request. Seniority is irrelevent.
All the good trips like FCO are taken up by W patterns even if it's my first request, rostering say too bad.
Name and shame, I say.