England’s Stuart Lancaster most impressed by Gloucester’s Jonny May

• Time for tough calls over World Cup squad arrives
• England head coach says May has been ‘standout performer’England may have relocated from the harsh altitude of Colorado to the gentler climes of stockbroker-belt Surrey but the heat is intensifying on those seeking fringe places in Stuart Lancaster’s 31-man World Cup squad. As many as nine players are set to be released by the end of this week and some talented individuals will be packing their bags on Friday.Lancaster will try his