Jetblue made the news a few years ago when they started having a relatively high number of fuel stops. That period in question featured a consistent pattern of stronger than normal headwinds which in reality gave all transcon A320 / 737 operators problems. As LAX said, after many years on the Bus I find it to be very capable in the East to West transcon market. How is the 737-900 series in this arena? What is a typical initial cruise altitude when it is all maxed out?