Thanks for that FF. Yep, it's clear that the CPS trace you have has an identical high peak. So I'm not worried about that now!
For information, this vehicle has been quite a case. In each measure, it has been an exercise in eliminating issues that could be causing the problem, until I finally produced my summary report to the customer, which is that the engine is fine from a combustion point of view, but shakes like a leaf from a mechanical imbalance. As I don't have the NVH kit, or have worked-out if it would have helped here, then I have had to go through the whole case from the combustion side;
a) Exhaust manifold temps (within 3degs celcius of each other, static and dynamic)
b) Cylinder balancer additive components (no significant reading) in the ECU
c) Relative compressions (OK)
d) Injector voltage/load comparisons, cyl to cyl (within tolerance, and all switching OK)
e) Engine speed roughness (speed is smooth)
f) Exhaust pressure pulsing (even across all cylinders, permitting some exhaust system resonances)
So the customer has been told to remove the transmission and look for a broken clutch cover plate, DMF, or similar.