Most of the commercial brushed pancakes seem to die every time they have a sudden stop or reverse. Brutus as point in case, and even the champion of LEM's , Storm 2 went over to the traditional side with the changeover to Ampflow.

In sort, even the venerable Bosch 750 needed battlehardening. But as far as I know, there isn't a EU or Aussie roboteer that battlehardened a Brushed Pancake with any degree of succes.
I know I won't even try. In my opinion the construction of the basics is way to feeble.