By Mike Walters Rocket man Sir Elton John ranked Chesterfield’s play-off final against Notts County last May as one of the most exciting games he’s ever seen. Spireites striker Joe Quigley thanks him for the compliment – and would like to repay Watford’s superstar life president by knocking the Hornets out of the FA Cup. Chesterfield have already dumped out League One leaders Portsmouth and Leyton Orient, and at Vicarage Road Quigley is quietly optimistic of his finest hour since his hole-in-one on a round of golf in Brentwood. Around 4,000 steeplejacks will be following Paul Cook’s underdogs …