By Jonny Turner Great memories are sure to come flooding back if The Big Lebowski can continue his brilliant form in the Gore Town and Country Club Summer Cup on Sunday. The big-striding pacer will be out to seal a hat-trick of cup race victories after taking out the recent Riverton and Waikouaiti Cups for trainer Brett Gray. Gore’s Summer Cup is part of a bumper race day which celebrates the Gore Harness Racing Club reaching its 125th year. The Big Lebowski was bred and developed in Eastern Southland by…