Boss Mark Stimson has highlighted a lack of fitness as a major issue at Margate and accepted everyone at the club is now “desperate” for an overdue win. Relegation-threatened Gate lost 4-1 at home to Dulwich in Isthmian Premier last weekend to extend their winless run to 18 matches. Little has changed since Stimson replaced Reece Prestedge in December, despite a plethora of recent new faces. “It’s fitness – that’s all it is,” said Stimson. “So many times now, I’ve watched teams just run past our players in the second half. “We’re bringing in players but the two full-backs (Toby Stevenson and A…