The CCB issue can be very frustrating; another M5 owner here in Miami recently traded his CCB's for regular brake setup due to the same issue. He was at the point of selling his car if he was unable to work out a swap. I never heard the issue with my own ears but can only imagine how bad it must be to consider getting rid of the car. Anyways, good thing yours has disappeared.
Glad you're liking the tires as well.
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CURRENT: 22' INDIVIDUAL M5| CHALK | TARTUFO | CCB | MPE | H&R | IND
GONE: 19' M5C| SINGAPORE GREY| ARAGON|VELOS VLS-06|H&R|iPE|IND|XPEL|CF|RADENSO
GONE: 15' F10 M5|BSM|BLACK|VELOS VSS-S2|KW|AKRA|IND|CF |ESCORT 360|VELOS PIGGY
GONE: 13' F10 M5|SG|BLACK|AKRA|KW|IND
LONG GONE: 09' E60 M5|02' E39 M5
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