Here's comes the turd polishing.

Before you get too worked up about preload, go look at the preload specs in the FSM. It's pretty much "as long at there is some and it doesn't bottom out you are good".

On that mild a cam go with the FSM specs, which means you are most likely good to go.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.