When engaging the clutch from a stop on my 2018 A4 Quattro 6MT, there is a shudder just as the friction point is reached unless I release the clutch very slowly. The shudder only happens in first gear, shifting hasn't degraded, and the clutch isn't slipping under full power. Is this likely to be from damage to the clutch assembly (~47K miles of use), or perhaps from "slop" in the drivetrain mounts? Would installing an aluminum transmission mount insert be likely to help?