When working on large complicated systems the best engineering approach is often to define a process (tools included) and then always repeat the same way. You’d

When working on large complicated systems the best engineering approach is often to define a process (tools included) and then always repeat the same way. You’d be surprised how many things can go wrong when you stop acting repeatably. It will definitely seems like a waste of time until the first time you blow up a half billion dollar payload because someone unknowingly trashed an important component using the wrong wrench.