Original Member and FlyerTalk Evangelist
Join Date: May 1998
Location: Kansas City, MO, USA
Programs: DL PM/MM, AA ExPlat, Hyatt Glob, HH Dia, National ECE, Hertz PC
Posts: 16,619
My somewhat limited understanding of the CO program for mileage redemption leaves me underwhelmed, in particular you can not reserve a premium seat on oversees flights until 30 days out, and that's primarilly what I save my miles for.