I've failed so many times at tempering chocolate, and just received a gift card so now I'm trying to decide what kind of thermometer would be best. I have a normal stick thermometer that I usually use for meats, and a candy thermometer, but I don't know much if there are better ones for chocolate? Is it better to get a digital thermometer? I see one labeled as "chocolate paddle thermometer" but can't tell if it's just a gimmick. Any insight appreciated, thank you!