I always thought my right front floated a bit too much but it has been fine driving. However, since bedford i get a vibration on light braking at 50mph + but if I brake hard they are fine.

Are AP discs known for warping(they are a not massively worn)?
How often to people with floating discs change the Bobbins/Bolts that hold them to the bell. Are these known for stretching or should they be changed as a matter of course after a period of time anyway.

I may take them off and get them all checked for flatness etc and get the bolts changed too.

Can you skim AP discs?

Ta