Harrington should be miles ahead in this. He averaged just over 30 putts per round in the first 3 rounds and has already missed 5 putts from inside 12 feet on the front 9 today including a 2 footer on 8.
Compare that to the leader, 24 putts per round over the first 3 rounds.
Phil playing the Scottish Open next week (link). Now that it's away from Lock Lomond, it'll be a better warmup for the British. Maybe it will actually help him -- can't really do much worse than 1 top-10 in 17 tries.