As you are local, any recommendations for injector servicing?
Driveline vibration noticeable at low revs consistent with lumpiness/misfire. Solve that solve vibration possibly. Service kit is on its way here!
The company that I used aren't actually local to Surrey, but came highly recommended by Julian V. I don't regret using them as their service was excellent and they even showed me what they were going to do, and then afterwards the difference that it made on a bench mounted setup - the injectors went from spraying to misting (like they are supposed to). I think they are called RVS Diesel - maybe someone on here can confirm?