<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Boo Boo Too:
Is it worth playing roulette with CO's upgrade policy? Any thoughts?</font>
You might as well forget about upgrading on the LHR-IAH legs. For a good laugh, read Concorde Boy's Unofficial Onepass dictionary:
http://concordeboy.tripod.com/continental/onepass.html
Read the terms "Hokey", "BendForward" and "BusinessFirst". The segment from IAH-HDN may be a little easier to upgrade, if you are elite or have the miles.