Originally Posted by elcruxio

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... for the others considering the same thing, sit bone pain in relation to padding usually occurs due to two reasons. If you have too little padding, the sit bone will press through it against the hard shell of the saddle, which can cause pain. This can be alleviated with more surface area contact. Selle SMP saddles are shaped in such a way that you can have quite a bit of surface area contact with the saddle. Some SMP saddles don't have padding at all, just a hard carbon fiber shell. Pain because of too little padding is typically somewhat sharp and usually pretty well localized.

The other type of padding related pain is due to too much padding where the padding conforms around the sit bone but there's too much material pressing against the soft tissues. Ie. the sit bones sink too deep into the padding material. This deprives the affected tissues of blood flow and oxygen. The pain related to too much padding is also fairly well localized, but can reflect to areas around the affected area and is usually a dull aching type of pain.

But the tricky part is that the dull aching pain and the sharp pain can feel exactly the same for some people. Trying to differentiate between various types of pain and their causes can be difficult.
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