Will Porter heading for Scottish boys' championship final victory

Will Porter (Carnoustie) is closing in on victory in the 36-hole Scottish boys' championship final at Dunbar.
One up on Ross Callan, the Bathgate GC club pro's won, after 18 holes, Porter has now extended his lead to four holes after 28.
If Callan is to pull the fat out of the fire, he needs to start winning a string of holes late in the contest.
It's been done before. Remember the winner who was seven down at one stage?