There may be other ways, but what you've described is how I do it. I used to think that it was a losing proposition, until I learned how it works. You have to CONSTANTLY refresh, either by switching the timeslots, or however your phone or pc browser allows you quickly refresh, and be ready to POUNCE when something appears that you want. Honestly, I bet I could go to any park with no fastpasses on a moderate cl day, and get as many fp's for the rides I wanted to. Yes, you gotta be dilligent, but when you get the hang of it, you'll be pumping your fist when you start scoring what you want by working the system. Sometimes it'll take a few minutes, sometimes, it might take 10 minutes, sometimes, you might not score exactly what you want, but if you don't try, you won't get ANYTHING. On our first visit, I would just refresh a few times here and there, and then give up. You gotta take a minute, and refresh like crazy, and concentrate. Once you get the hang of it, it's really not a big deal, and it's kinda fun when you're on "The Hunt" and you score. Remember tho - if you don't try, you'll get nothing, and the other people on "The Hunt" will be scoring.