While I do have flights booked on DL in May, I am concerned about them. And quite honestly, despite some of the posts on this thread, I will look at CO or NW for additional flights I need to make in June and July. As much as I am a DL "gee whizzer" I have to look out for the interests of my clients and myself, and one of the most critical ones is making sure I get to where I need to be.