Good for you, wearing out a Marathon tire is no mean feat!
I thought the Supreme was superseded by the Marathon Almotion or the Marathon Efficiency. According to BRR they are very, very similar with the Efficiency having a slightly thinner tread cast in race-compound rubber
Schwalbe Marathon Almotion Addix vs Schwalbe Marathon Efficiency
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."