Planning your piping weekend? Three top events to choose from in North America and here. Firstly in Ontario  we have the annual George Sherriff Memorial Invitational for amateur pipers. Organiser Bob Worrall has sent this: The 21st Annual competition is on Saturday, November 19, 2016 in St. Paul’s Presbyterian Church, 70 James St. S., Hamilton, Ontario; Admission: $10 ($5 for students) Master of Ceremonies: Michael Grey Adjudicators: Andrew Hayes (Ottawa, Ontario), Shaunna Hilder (British Columbia), and Donald…