"Yes there always is ressies left at some point but walk ups are not like you say at least not anytime we go."
As you see I did say in my post ressies do come up never said you could not get one. Also the closer you get to the date people cancel and the harder to get places like there, Ohana' , BOG, etc will have availability. We have gotten Ohana' the day before while on our trip and had been trying for 6 months to get one! You just never know. My main point is most days they do not allow walkups! I'm sure also if I want to continue try to change my ressie like I mentioned the closer it gets I probably will be able to. I'm still 43 days out and have had no luck changing it yet. Still booked solid the days we want to change to. And this happens every single trip. It's never been easy to make ressies exactly when we want there or change them once made. I also have never seen the restaurant not completely full as some other sigs we dine at, etc.