Rode again today. MUCH better result. It was over 10 miles again on mixed terrain, 65% paved and 35% trail. I got a little soreness at mile 9. I think I was sitting too far forward on the seat and putting pressure on the wrong areas. Sitting back a little farther helped. I also was wearing different clothes. Up to now I have been riding in fairly thick cargo shorts, EXCEPT the day I got really sore and had pain to the extent I thought I was going to have to call th wife to come get me about half way through the 10 mile ride. That day I had on thin sweats and the terrain was ALL paved. I think the thin sweats didnt agree with my body and when I went back to the thicker shorts I did much better. I will look into padded shorts or those padded underwear. In the meantime it could also be my body getting used to it. Thats like ride 7 in 10 days.