I've seen and read on here that folks are shaving their heads with a st8 razor. I'm just looking for details that will make the process go a little easier.

It's been at least 15 years since I actually put a razor to my head. My sister helped me back then with a BIC razor. It didn't matter what direction WTG, XTG, and worse ATG it just flat out hurt. Why even do it? The answer to that is a coworker is going through chemotherapy and I told her while she is getting treatment I will also be without hair.
My beard is thick, but my head is impenatrable in comparison. I remember trying to dry my head with a towel way back when and couldn't even move it with all the stuble grip. I'm comfortable with shaving my face at this point, but not so sure about not being able to see everything on my head.

Thanks in advance to all, Morgan.