I have never been one for system betting but one little piece of guidance returns to my mind at the start of every year: back Nicky Henderson’s horses at Kempton in the run-up to the Cheltenham Festival. His runners always do well at the Thameside track, although that is not the only reason why the champion trainer has promised to chain himself to the earthmovers if the Jockey Club perseveres with its shameless plan to sell off the course for housing.