Thank you! I will probably check a bag then.

The same flights I just booked were going for 110k miles on UA, but I snagged them for 65 ok CO.

http://www.continental.com/web/en-US/apps/onepass/transferMiles/betweenPrograms/signInHome.aspx will allow you to transfer miles back and forth. No minimum, no max, just need to make sure that your name and address on both accounts match exactly or it will not go through. For example, My CO account included my middle initial so it wouldn't work until o changed my information.