Mine is due for the 15,000kms service soon, and I haven't had the software updated since I bought the car (they didn't do it at 3000kms).
Mine was a fairly early build (May registered) WS, so it will be interesting to see if I get the same fuel economy improvements as you did greenfoam.
I've had the Hankooks on the car since new, not nearly as many kms as yourself but they are hardly worn. I'm very impressed.
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