Inverted 1,
It was an interesting thread, while it lasted.
No apology needed. I've been through this discussion many, many times.
I still think the rule is ridiculous.
Are there ABC specs on the manufacturing of balls?

You can't soften the ball surface . . . .

BUT particles can be added to make the ball grip the surface?
Ball coverstock is more aggressive than it's ever been in the history of the game.
Does the ABC have a "watchdog" department to oversee what particle type and how much of the particles are put in the ball?

The ONLY logic I see in the rule, is to keep bowlers from endangering themselves and others by using unsafe chemicals, trying to soften a ball's shell.
As a cleaner, I have never seen a durometer reading changer before and after wiping a ball down with acetone.
--------------------
You're only as good as your last shot. -- Duke Harding