All this is, after all, is a matter of judgement.

Who regularly and religiously checks their tyre pressures or takes the trouble to get their gauge calibrated? A few PSI in tyre pressure off that recommended is not particularly advisible but not a cardinal sin and neither is removing some grease from a brake pad.

Given the advice on greasing kingpins on TM, I'd put money on there being contaminated discs on probably 20% of the Morgans owned by TM members. I remember David Rutherford showing me the build up of grease sitting on each damper blade of one particular 4/4; there was about a quarter of a tub of grease each side.