I have ridden a Selle SMP Evolution for the past year and a half and recently got a Selle Italia SLR. Both have been no problem on the road, very comfortable. But on the trainer or the rollers I get pretty uncomfortable down there after 45 mins or an hour. I believe riding indoors is just not the same, even if one is making an effort to shift around and stand some. . .it's still just not the same.