In previous posts many United/Continental pilots complained about the -900ER and called it a dog, especially in Denver. They complained about leaving passengers behind because of the -900ERs lackluster SE go around climb performance in icing conditions. Today, Alaska Airlines has made landing flaps 15° an appoved "normal" flap configuration. Apparently this will make the go around performance issue much better. My question:

Is flaps 15° available to UAL/Cont pilots? Does it make a significant difference? What do you think?