“Subject: Hey, «First_Name» have a few quick specific questions for you. . .        Hey, «First_Name»!        Hope all is well.        Wanted to touch base. I have a couple of specific questions for you. Could you please call me at your earliest free moment at «Your_Phone_Number»? It’s not an emergency, but when you have a second, please give me a call. I promise to only take a minute or two of your time.”