I'd always have grease in at least two places, in case the umpires would ask me to wipe one off. I never wanted to be caught out there with anything though, it wouldn't be professional. ↗
Do you have to be like a second-grade dropout to be an umpire? Did you go to school until you were 8 years old? I think you quit school before you were 10. Stay in school kids or you'll end up being an umpire. ↗