A sentence of 14 years' imprisonment for dealing in 1433 kg of dagga, where the offender meticulously planned the operation by converting a trailer with sophisticated secret compartments at significant expense (R28,000), had a previous conviction for drug dealing 20 years prior, and was the organizer and owner of the vehicle used, is not so disproportionate as to warrant appellate interference. Previous convictions that have not lapsed under section 271A may be considered to demonstrate that an offender was previously warned of the consequences of criminal conduct. The quantity of drugs involved and the sophistication of the criminal operation are primary sentencing considerations. Personal circumstances including age, family responsibilities, and financial losses, while relevant mitigating factors, do not necessarily outweigh aggravating factors in cases of large-scale drug dealing. An appellate court will only interfere with sentence where there is a misdirection, irregularity, or a striking disparity between the sentence imposed and what the appellate court would have imposed (the "sense of shock" test from S v De Jager).