Perhaps you need a different saddle width, and/or contour. I had similar issues until last fall, when I bought the Secteur. It came with a Specialized Riva 143mm saddle - nothing fancy by any means, but it's the most comfortable I've ever ridden. I, too, had sit bone soreness after long (2+ hour rides), even in the beginning with this saddle, but now I can ride about four hours without significant discomfort. For me, I think getting comfortable was a matter of finding the right shape and width for my anatomy, then getting accustomed to that. I have a 143mm Alias on my Trek, but it's flat at the widest part, whereas the Riva is more rounded. The Alias is not as comfortable after 2+ hours. I also find I'm sitting further back on the saddle now, which places the sit bones in an area where there is more support. Unless you have a Brooks leather saddle, you're breaking in your rear end, not the saddle. LOL Finding the perfect saddle can be a lieflong quest, if you believe some of the posts you read here. Once you find the perfect mate for your posterior, stock up!