I have tried a few products on the cladding ..... to improve the appearance ......
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I have (almost) come to the conclusion .... that, like the insert, I should have left the cladding as it was ..... dull ...... whatever .....
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but, I do like the appearance of the cladding when treated with Mother's Back to Black ........

Mother's BTB gives the cladding a decent .... 'rich' .... even appearance ......... and appears to 'wear' better than the other products I have tried ...... (sorry - forget the names of the other products I have tried so far) .......
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BTB also appears to work well for removing wax from the cladding .....