Maybe I'm just different. I've watched a great many openbsd boot sequences, which tend to have a great many pauses, and I've never paid any special attention to the lines that come before pauses vs lines that come after pauses.
If anyone in the OpenBSD world is interested in speeding up your boot process I'd be happy to share tips and code. It's a bit daunting to start with but with some good tools it becomes a lot of fun.
I understand the reasons for no "how-tos". But sometimes they make sense for people like me. I wouldn't mind delving a bit deeper given some direction.