dust means they're working... no dust means they aren't doing a good enough job...
if you don't want brake dust , don't buy a performance car
LOL!
I've been running DBA4000 front and rear on Brembo's for ages and they are great! Would love to have 5000 but couldn't justify double the price for ali hats etc at the time.
Am now running some Jap pads called ACRE Super Fighter on the rear and EGIL or similar name fronts (bought from Tenegah on recommendation from a guy i race with) both are awesome and have used them on street and track and have instant bite up from cold!! Plus zero fade when pushed hard at the track!!
I've given up on Ferodo over the years due to their massive expense for what is effectively a pretty noisy and easy to cook set of pads. If you use Ferodo 2500's that is, but if you go up to the 3000's they chew your rotors super quick and also your wallet. All up for both front and rear pads for me cost me sub $400... Ferodo's are in that vacinity for fronts only!