I was having comfort problems with my saddle and was convinced I need to get different post to let me move it back further since I wanted to sit further back on the saddle to be on the widest part and get rid of that black and blue feeling on my sit bones. After riding a while I had to keep moving back, almost off the back of my saddle, for relief. I couldn't get the saddle back far enough to stay there or I was sitting too much behind when saddle was designed for comfort but my body position wouldn't stay there....or so I thought. I went into my bike dealer to ask about different post---he asked me why---I explained and he asked me a few questions. Turns out he was right! I needed the saddle to be moved forward, not back. That way I could sit on the wider part without having to move myself back! Now it makes perfect sense. Just a thought - it worked for me. Also when recently measured for saddle on Specialized it turns out I measured for wider saddle (most woman do) and that really helped. Now I feel a sense of ahhhhh--that's better---no more black and blue feeling from pressure on sit bones after a long ride.