Front brakes squeal...this feels like a saga in the making

[pdedse]

Through the years, on my single front disk bikes, to stop squeal and to stop better, I "rough up" or scratch the rotor. Make scratches across the rotor, where pad contacts the rotor.
On dual disks, I usually don't need to do it.

^^+1^^, occasional squealing does not necessarily indicate a problem.

^^+1^^, occasional squealing does not necessarily indicate a problem.
"occasional squealing" for my ex is every single time I brake to a stop! It's strange, I had a '14 standard and it never squealed at all. But it seems the '17ex slow speed squeal started around 500 miles.

I thought about taking it in to dealer, but after reading all what VLJ did last year to find a fix for the problem, and for them to conclude, "meh, brakes do that"... didn't bother.