Well so far so good. The DPF pressure sensor was replaced and haven't had any stuttering as of yet. Did a 200 mile journey yesterday and today and ran like a dream.
So I did have the dpf pressure sensor replaced but at the same time I also had the fuel filter replaced.
The car has run flawlessly ever since but I am thinking it is more likely the fuel filter that fixed the problem as I can't see the dpf pressure sensor causing the symptoms I was having which felt like fuel being cut off.