I think you are mixing up terms here. What you call "downgraded MTPLM" is not a plated figure at all. At least it doesn't satisfy the conditions applicable to a statutory weight plate. It is nothing more than a label applied for marketing purposes only. So long as there is a statutory plate located elsewhere on the vehicle one could not be prosecuted for removing it. As I said, whether the lower figure is accepted as valid is at the discretion of the officer in charge. Whether it holds up in court is for the court to decide, but from my perspective it would be difficult to provide a convincing argument.That being the case, could a prosecution hold where the trailer was loaded within the "Type Approval" [real MTPLM], but above the UK van makers downgraded, plated MTPLM ?