“10. FPR 30.12(3) provides that an appeal may be allowed where the decision was wrong or unjust for procedural irregularity. 11. In Re F (Children)[2016] EWCA Civ 546 Munby P summarised an approach to appeals, 22. Like any judgment, the judgment of the Deputy Judge has to be read as a whole, and having regard to its context and structure. The task facing a judge is not to pass an examination, or to prepare a detailed legal or factual analysis of all the evidence and submissions he has heard. Essentially, the judicial task is twofold: to enable the parties to understand why they hpave won or lost; and to provide sufficient detail and analysis to enable an appellate court to decide whether or not the judgment is sustainable. The judge need not slavishly restate either the facts, the arguments or the law. To adopt the striking metaphor of Mostyn J in SP v EB and KP[2014] EWHC 3964 (Fam) ,[2016] 1 FLR 228 , para 29, there is no need for the judge to “incant mechanically” passages from the authorities, the evidence or the submissions, as if he were “a pilot going through the pre-flight checklist.” 23. The task of this court is to decide the appeal applying the principles set out in the classic speech of Lord Hoffmann in Piglowska v Piglowski[1999] 1 WLR 1360 . I confine myself to one short passage (at 1372): ”