Tom Sestito has been called a lot of things. Some of them are flattering. Some aren’t.As a waiver-wire claim after the Vancouver Canucks lost Aaron Volpatti to the Washington Capitals in the same process Thursday, the hulking winger is banking on a hard head and soft hands — he scored his first two NHL goals against Roberto Luongo and Cory Schneider — but his long-term effectiveness as a fourth-line checker, grinder and fighter will be measured in the short term. The 6-foot-5, 228-pound forward can’t be a gentle giant in the Canucks’ ongoing fourth-line experiments knowing Steve Pinizzotto is honing his game with the Chicago Wolves.