I had this conversation with them today. My 110 gets a little bit of backlash which decreased after the first service when they said they greased the adaptor shaft. The mini Pocket Rockets 90 is practically impossible to get any backlash from no matter how badly you drive it. - I've tried [tonguewink].
Interestingly enough mini Pocket Rockets 90 is an ex-demo car which makes one think it had extra special attention before it was put on the floor for prospective buyers to drive. It also leads one to the conclusion they know how to make a Defender without backlash but they can't be bothered.
As a part of my conversation I did suggest the issue wasn't driving style as we do have a selection of Defenders to compare to and we do know how to drive them. I think unfortunately for them the main service rep has been away sick and we've been speaking to others at the dealership and they tried to fob us off with the old "Its a Defender thing'. The main service rep knows never to utter those words in our earshot and they are now engaged in a backside covering exercise which I don't think will actually fix the problem.
We have had all 3 in numerous times for issues where they have said nothing is wrong but the car comes back fixed. For some reason they have an issue with admitting when there is something wrong with one of the vehicles.

