The Seattle Sounders are back in the Western Conference finals. That’s two years in a row they’ve made it this far, three times in the past four -- with the lone exception seeing them knocked out in penalties -- and four times in the past six. Toronto FC is the only other team to make back to back finals and no other team can match the Sounders’ run of success in either of those other areas A club once known for its playoff struggles are now proving themselves remarkably consistent when it comes to postseason soccer.