I noticed numbness in my outside toes yesterday on my ride of about 28 miles and realized that this is not the first time it's happened. I think my problem may be in the seat. I seem to feel some pressure on the backs of my thighs just below the glutes, and I think it may be causing some circulation problems. The tingling seems to go from my toes all the way up my legs. One of these days I'll try out some different seats at my LBS to see if a different shape fits me better. I have a base model Selle San Marco (can't tell you more because the logo is worn off) on a steel De Bernardi frame. I'll be looking for a saddle with a lower profile yet still puts pressure on your sit bones where it's suppsoed to be. It will be a long process of trial and error to find the right seat. I suggest you do the same.