That Terry is going on my Trek 7600, which has an allen compression seatpost clamp. I have several old saddles that can go on the 820. Since my longest ride on the 820 is going to be around 3 miles (each way), I'm not going to need a great saddle. And some of them are decent anyway, like another Terry that is scuffed on both sides.

No way I'm going to leave a Terry Fly Ti on an easy to remove seat post overnight on a college campus.