Just bought front "plain" shims for XP10 pads. Do these shims go in between the stock shims or do they replace the OEM shims completely? And are you guys greasing both sides of the shim?

Old topic but I'll throw this out there since I didn't see it mentioned: Stainless steel shims would work almost as well but be way way way easier on the wallet.

I replaced, but do think keeping stock ones on would still be beneficial.More material.

I do wonder the actual effectiveness, because backing plates are already about 5mm thick.