Manager Ady Pennock has urged his Dartford players to start their big FA Cup tie on the front foot this Saturday. Isthmian Premier Darts will look to pull off an upset and move into the fourth qualifying round when they visit National League South side Worthing. “I love the competition,” said Pennock, whose team went down 2-1 at home to Bowers & Pitsea in the league last weekend. “I have been very blessed as a manager and as a player to have done okay in it. “Obviously, it’s a big game for the club but it’s a tough one. “They’re a very good side. We have looked at Worthing already. “We have to…