The game started in Old Boys favour, a header off the line by Liam Harris from a dangerous inswinging corner.
Kieran Daniels played in Todd Bartlett but under pressure from a defender he could not get enough power on his shot to beat the goalkeeper.
Juster made a confortable catch from a free-kick.
Old Boys thought they had gone ahead when a shot hit the post a rebounded across the face of the goal. A number of their players believed the shot had already crossed the line. A short while later they were ahead a lay-off inside the penalty are was taken one tuch and shot past the exposed Juster.
Cutting had the ball in the net, but it was ruled out for offside as Old Boys searched for a second it came from a corner headed in at the back post.
Playford then pulled one back, Kieran down the left found Joe Harris on the edge of the box and he spotted the run of Ben Thomas, Thomas was able to fire a low shot past the 'keeper.
Soon Playford were level, good work down the right by Bartlett, twisting and turnig freed him to give King the ball in the centre. King was closed down and bacak tracked returning the ball to Bartlett. Bartlett back heeled the passon to Liam Harris arriving from full-back who drove past two defenders before firing in a powerful drive across the 'keeper.
The scores were level at half time and an scramble in the Playford penalty area saw Juster twice, Burman and the post keep out Old Boys in a frantic few seconds. Playford then took control, Daniels found Bingham with a throughball and he calmly slotted past the 'keeper.
Joe Harris made in 4-2 before Jack Lord put King in for number five. Juster made a good diving save to deny Old Boys late in the game.
Playford turned a two goal deficiet into a 5-2 victory. It keeps Sam Burman's managerial run at eight wins out of eight.