Yes, but I was kind of exceeding their recommended use, so they would likely be fine for street use. I swapped in a set (at least 70% left) on the second day of an HPDE because I'd worn thru the semi-track pads, and they were down to rivets by the end of the day. Bonus from this was learning I could enter (and survive) the bus stop going a lot faster than I'd initially thought
. Prior to this I'd never had trouble with them fading or going soft in spirited street driving, but I did wear down the rear pads quickly (replaced c. 20k miles IIRC) apparently because this is where the TCS does it's magic if you drive hard. The guys at Zeckhausen thought they could be made to work on track with dedicated track pads (but just barely); swapping pads on these is such a chore that I just moved up to the BBK. I didn't notice a lot of dust, but hard to compare since I also changed wheels w/ the BBK (the stock kit pads for that haven't been 'dust monsters' but I do get some).