A question from a slightly different stance for those who have scrutinised the NPA: if an IMCR holder were to add an EIR to their repertoire, would the combined privileges equal those of a full IR holder flying solely in the UK (notwithstanding visibility and descent minima)? It seems possible to depart Southern Europe in VFR, fly IFR en-route, then complete an IAP in the UK.
It's a dangerous thing is thinking