For The Love Of Port

Would you care to comment on the rate of maturation of VP in half-bottles and magnums vs the regular 750 ml bottles? Do you think there is some rule of thumb that could be applied about accelerated or delayed maturation? Is it different for different vintages?

Please forgive the painfully obvious question - I (today!) scored a case of TF VP 1994. I thought I would take the opportunity to ask the master. What is your preferred decant time on this? The tasting notes are all over the place, ranging from 3 to 18 hours.