I was going to mention the SMP TRK. I ride the SMP "Hybrid" and its decent for longer rides, at least for me. I ride fast group rides with it too. The TRK is a little big, but only a little. I still liked it. In fact my comment is....the TRK might not ultimately be your favorite saddle but, I can just about guarantee you that it will not be uncomfortable. And its relatively cheap.
If you are smaller (under 6') then the "Plus" or "Hybrid" models might be a better choice.....and they are also by no means uncomfortable.