I think I need a new saddle. My Specialized Body Geometry must be ten years old now and it is giving me a seriously sore arse after just one days commute (24 miles on fairly smooth track, wearing padded lycra undershorts). If I want to step up to commuting more than once a week then I need a bit more comfort!
So, how do I find a new saddle that fits me better?
I've heard tell of people finding their size by sitting on a bit of corrugated cardboard. How does one interpret this and use it to pick a saddle?
Or do I just present my piece of cardboard with two cheek prints and a skid mark to my LBS and see what they recommend?

