How long do you generally wait before sampling a Casemates purchase?

ctmariner thought this was worth mentioning said

I buy red wine online and for vintages that are ready to drink now, I generally allow about 3 weeks for the wine to settle down after shipping across country by Fedex. Not sure if this is a myth or not but interested in what others do or think?

Also of the 100 or so purchases I have made from this site and the old one, I have had only 1 bottle break in transit - a Ty Caton Cab in a mixed red trio - and Wine David or one of his helpers took care of it. Saying that will probably curse future shipments!