Former? Where (and when) did he say that?bholwell (former maxxis tyre design/developer) says:
"The dual compound version is 62a center / 60a shoulder.
This is from 2015 (and I believe still current)
Maxxis Tyres - Everything you need to know
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"Dual compound – 51a/60a - A 51a rubber compound on the side knobs with a 60a rubber on the centre knobs."
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