So I just got my long awaited Look 555. Got it off ebay about a week ago thanks to a larger than expected tax return. I really like the how stiff and solid this frame rides compared to the orca but I must say the orca is about the most comforatable bike I have ever been on. The Orca is much lighter to but it is built with DA and the 555 is all Ultegra. I posted several pics with different combos. I am curious to kow which ya'll prefer.