We stay at FW and never make ADRs for Trails End. We find that they are not needed. You may have to wait a few minutes depending on the time you arrive, but you will get seated.
My wife and I have stayed at FW in both 2004 and 2007 and it was called the Trails End both times. It is a good buffet resturant with the western theme. (Drinks in mason jars, plates that are made of metal, etc). You probably do not need to make ADR's but we always do for any sit down meals. Just makes things easier and little chance of not being seated. Enjoy.
Thanks, I was planning on maybe going when everyone gets sick of counter service food. We're doing a budget trip this time so I'm limitting set down meals.