yes i think i can just about see the difference between them.(after asking my 3 wives and 2 girlfriends is hard to argue with

.lol)very hard tho and it was 1 of each on the car. this has put a end to why the car was pulling up (braking slightly) to 1 side on a straight.always thought i had 2 sets of silver as the gray dont come in the packs,but when i had a look at the set up sheets found that you can also get grays that are slightly harder.