I have CCBs and have tracked mine a few times but like you I have a dedicated track car. The brakes worked well and I thought the pad life was fair and cost for the front pads was pretty reasonable. The first set of pads I changed at around half depth because I was heading to a four-day event at VIR and didn't want to mess with changing them. The first set were on for four days at that point but I didn't drive a ton - 18 sessions totally 156 min on track.
The second set I've only run for 2 days at VIR and they seem to be holding up ok.
The CCB rotors are really the question though. I'd track this car a lot more but I'm afraid to have to replace those CCB rotors at ~$7500 a set online (more like $11,500 at retail!). So far they look fine with no pot marks but I haven't bothered to pull them and weigh them.
The tires also held up (and worked) surprisingly well. After 6 days and ~5000 street miles they would've still worked for the track but surprisingly the inside edge of the fronts were starting to cord so I replaced them - the rears still look good.
I did a little video walkaround on how the car was holding up to track usage and I've posted a bunch of other vids here: