Harlequins’ Mike Brown wants perfect end to season against Montpellier

• Full-back wary of opponents in Challenge Cup final• Brown wants Quins to get better as individuals and a teamMike Brown is set on rediscovering his abrasive edge at the climax of a season that started with the bitter disappointment of England falling at the first hurdle of their World Cup but could end in a Challenge Cup victory with Harlequins to embellish grand slam success.Brown, the England and Quins full-back, did not hide his anger after England lost to Wales and Australia at the World Cup, engaging with posters on social media in an exchange that led him to tone down his playing style…