On DL, I've only had one trip not post correctly on it's own. Last October 6th and 7th B747-437 and I took a miracle $88 (including taxes!) run that consisted of TPA-MCO-CVG-SLC-ABQ-DFW-ATL-TPA. It involved a voluntary bump, an upgrade to F (on a U fare no less!), and several early standby legs. When we got home only some of the segments had posted. I got all mine posted the next day afetr faxing in my ticket stubs. This was during the double base mile promotion last year. Oh those were the days.