Yes, and also try signing up for dining notifications. There are a few non-Disney companies that let you sign up for Disney dining alerts so that if someone cancels a reservation you are looking for, they'll send you an alert. You do have to be fast at grabbing them. I used the one that starts with Mouse (we're not allowed to link it) and a lot of Trader Sam's reservations opened up within the last couple of days before my trip. I'd gotten a couple alerts before that but was never quick enough to snag one earlier, I think because they didn't show up often and would just randomly come through so by the time I did see them they were already gone. In the days close to my trip, though, I was checking a lot and would see that I had a dining alert, know that I only had it for TS's, and immediately go to Disneyland.com dining (I often had it up on my desktop already) and try to grab it. I was successful a few times but only needed one so I didn't complete the others, just looked to see if they were still available out of curiosity.