Thanks for the neat update 
Persons like you should be hired and rewarded by Ming cycle - you are a perfect test pilot with that respectable mileage 
I wonder how many times your freewheel was changed in fact - I guess two times at least?
Also - did the service team anything at your rear hinge?
Was it necessary to maintain the KS3 drive?
You know what’s principially different between them ?
The LT’s excenter is made of plastic (instead of aluminium) and also are the wheels.
I don’t think that the plastic excenter can be the cause for a different ride feeling…