I'm going to make hamburgers tonight and it will be the first time since getting my thermapen as well as only the second time cooking them (first cook ever was burgers) and I didn't do the best job my first try although not terrible. I'm curious to know if anyone can tell me what temp. would be "medium" for burgers? Or, is it even something anyone measures and rather just goes 8-10 min. per side and flip method. Any suggestions would be welcome.