i have been getting really rough riding sometimes from my discs. feels like they are warped so i took the brakes apart, pads are fine, a little glassy. discs are DBA slotted and are straight all the way round. However, there are some high spots on the discs and mostly the left hand side, where most of the vibration comes from.

from others experience does this sound like the discs need to be machined? new pads?

also the pads are landcrusier pads which are harder and just last longer. could this contribute to it also?

TIV.