I've never had a problem with numbness, but I found my smp stratos saddle to be more comfortable than any other I've owned. The right width is important. SMP makes several widths and different levels of padding for each width. The suggest using your waist size when skinny as a guide for width with a 30-31 waist, I chose the narrow model with standard padding and it worked well. The angle setting is critical. No cheap post with wide spaced serrations will work, except by luck.