Relieving Fork Tube twist

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36554-

I don't believe tread life would be affected with or without this procedure by any measurable degree .  It is intended to relieve any binding/stiction caused by the forks being mis-aligned and get the best compliance in the fork action.
One more thing I thought about.  When torqueing the axle pinch bolts, go back and forth between the two until you get no movement when torqueing.  It might take 3-4 passes to get there.

Frank

My hypothesis is........if there's enough misalignment for the forks to bind, that should result in an unsteady compression of the suspension and a twisting action at the contact patch.  I've been mystified by the increased cupping (outboard of the center hard compound area) I have seen on 3 Michelin Road 5 front tires.  This is my attempt at taking one possibility off the table.

Yes, I roger your comment on the repeated torquing of the pinch bolts.  Reminds me of some MIL and NASA specs I had to deal with in the past.  At least, we don't have a specified relaxation period between torquings