Debstir,
Those you've seen are the Endurance and they do have a small medial post (the alternative is the Speed, which is neutral, even lighter and less cushioned).
When racing, as it's generally for a shorter distance, often people chose to forego the normal cushioning and support the choose in their training shoes for the extra benefit of a lighter shoe (More cushioning and more support mean more weight, whatever wondorous technology we've invented for you!!).
The Fastwitch Endurance does give you a little bit of cushioning and a little bit of support too.
Sami,
The Swerve is a bit more substantial than the Fastwitch, it fits in the range between the Omni and the Fastwitch. The latest update on the Swerve is the Tangent.
Not sure where you got the distributors and names thing from. We've been Saucony UK for over ten years now! And you should try www.saucony.co.uk for more relevant product info.
Hope this information helps.
Posted: 07/04/2006 at 21:37