Dave , I will Admit it was an area of concern to me ,and perhaps it's a higher priority maintenance area ,than a straight cup set up , time will tell ,
I asked the Question ,and they said provided the Boots were fitted and the area lubricated regularly ,it kept the temp down and reduced ware
and tare ,and they were not worried after hard testing at the Lizard Belly Istanbul Circuit ,the biggest ware item was tyres ,on the rock ,they
got through a lot .