No difference at all.
Been to 3 mechanics,all used to gauge for measurements. Even called lexus told them that i got the discs(parts) from them and explained what happend,symptoms and all and within a few weeks since i bought the discs from them they got warped. Been told that i have to leave the car with them to investigate the matter sending the complaint to some place and that might take up to a week and nothing else could be done. I need the car cant leave it there for a week or so and they said u better change the calipers too but the price they gave me for 2 calipers is crazy. About 700-800 euros parts only.