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Maybe I should downgrade!!

OK
Can't say I have noticed that. There may very well be a difference in this area from the cloth to the leather.
I do notice on the twisty bits that I tend to slid around the seat a bit, but put...

Yes, but basic seat design would be same I think. Can take or leave leather. Lux probably has a few more adjustments available. Does the base have the lumbar adjustment?. I found the Civic seats also...

Find them very comfortable. Do a fair bit of long distance (2.5 hours plus) driving and not just on the motorways. Nice and supportive. Must admit it took a while to get the seat adjusted just right...