Jordan Higgs scored against his former club as Tonbridge completed this season’s National League South double over Kent rivals Dover on Tuesday. Midfielder Higgs gave Angels the lead and, although stand-in skipper got basement boys Dover level before half-time, Francis Mampolo earned the all-important third goal in the second period after Whites keeper Daniel Jinadu’s mistake, with it finishing 2-1. The result moved Whites another step towards a second relegation in three seasons while it boosted Jay Saunders’ side play-off hopes. Iffy Allen had blazed over for the hosts inside the first 90 se…