21 Neither the Crown nor the applicant challenged the correctness of this approach on the appeal. It was in accordance with settled sentencing principles for his Honour to have specified the discount value of the plea of guilty in the calculation of sentence (see R v Borkowski [2009] NSWCCA 102; 195 A Crim R 1), but for his Honour to have quantified the value of the plea in combination with the other factors to which he referred, and to notionally appoint a discount of something in the order of 10 per cent for them (assuming the full allowance of 25 per cent for the early plea) before arriving at the total sentence, was contrary the approach to sentence for which the High Court in Markarian v R [2005] HCA 25; 228 CLR 357 is authority. In Ayoub v R; El Masri v R [2010] NSWCCA 196, Rothman J had occasion to refer to the joint judgment of Gleeson CJ, Gummow, Hayne and Callinan JJ in Markarian where their Honours emphasised the need to identify all relevant factors to the sentence under consideration to ensure transparency and accessible reasoning in the published reasons which are the final product in the sentencing process but that absent specific statutory requirements, a process by which a sentencer adds or subtracts passages of time, item by item, from some subliminally derived figure should not be adopted. Rothman J also noted that in Markarian at [51] McHugh J regarded the concept of instinctive synthesis in sentencing practice as:
"…the method of sentencing by which the judge identifies all the factors that are relevant to the sentence, discusses their significance and then makes a value judgment as to what is the appropriate sentence given all the factors of the case. Only at the end of the process does the judge determine the sentence."
22 Consistent with that approach, McHugh J went on to observe that, in effect, while greater and lesser weight will be allocated to some factors depending on their relevance, the determination of an appropriate sentence taking account of all relevant factors is intuitive, not a matter of calculus.
The sole ground of appeal