In your three posts above Dave you don't mention the Quaife rack damper issue you found. Please correct me if I'm wrong but I believe you found the nylon yoke/plunger had expanded to the point it had seized in the hollow threaded adjuster such that it's spring loading had no effect on the rack, although not sure on which of your Morgan's. This issue was brought to light on Talk Morgan by Heinz I believe although relatively recently. The usual sanding down and re-adjustment correcting the situation.
Whether it was discovered on your Plus 4 or Roadster is almost irrelevant as I'm tempted to suggest it may have saved your need to fit an external damper to your Roadster which would simply hide the effect of an issue on the rack itself, given it would manifest similarly to that which caused your initial concerns following fitting steering bearings.
In my own case on 3.7 Roadster the very first difference noticed after checking and re-adjusting rack was slightly stiffer steering coupled with calming of the light lively steering previously encountered which had almost imperceptibly over time increased skitishness over bumps.
FWIW I also have the Wolf lower steering bearings which gave immediately lighter steering, albeit with Morgan's own upper bearings, however I also have a nominal 13 inch (actually closer to 12 inch) MotoLita steering wheel. When experimenting by pulling the EPAS fuse I found the steering heavier at all legal speeds but particularly during parking such that the fuse was quickly replaced. This with 205 tyres on 7 inch rims and I believe the heavier 3.7 engine. This probably explains why MMC made the Denso EPAS standard on the 3.7 Roadster around 2018 rather than an option.
