I want the bolt locked when the safe is on, like others here, and for the same reasons. It is what I am used to, and it prevents the bolt being knocked enough that the rifle won't fire when I want it to, or worse still, dropping open and losing a round.

I see no good reason for having a safety that allows you to open the action to unload, while still on safe. If you can't open the breech without inadvertently pulling the trigger you have no business with a firearm. I'm not much of a fan of typical three-position safeties either.