When time permits, I move my work schedule around to try and hit my Ross when they open. I was able to do that quite a bit earlier this year, but not so much lately. Even then, it was usually just one figure here or there... a Cassian, or an HK droid... a random Skiff Guard... all things I'd bought at full price, I pretty much use the Ross finds for customs. I'd say that I ended up with a purchase from there maybe 10% of the time, so for me at least, it's all about persistence. If I were to cut my Ross runs in half, I might never find anything I'm interested in. I also post what's there on a local Facebook page for nearby collectors.
If you frequent the stores enough and are friendly to the employees, I've found it can be helpful too... they even have told me when to expect shipments, and they know what I collect... two weeks ago in fact, I walked in and a lady working there had saved a Sabine Black Series lightsaber! I could not believe it. I bought it, and giving at cost to a local buddy (Dennis) as he's been stalking a different Ross store for it. And now I'm on the lookout for a second one, so he and his son can have a duel (seriously).
😉