I just got an awesome deal on a set of Easton EA90 SL wheels and I need to get a cassette for them. I am running an all 105 setup (5700) currently and was looking at the Ultegra 6700 cassettes. I was planning on getting the 11-28 (which is what my 105 cassette is) but I keep reading that the Ultegra cassette (11-28) is only compatible with the ultegra and dura ace RD.

Has anyone used the ultegra cassette with 105 RD successfully? Or should I just get another 105 cassette? I'm keeping my current cassette on the wheel I use with my trainer.