Find a visa agent in the area you are visiting they will be able to explain everything. Maybe ask the same questions of several different agents as I have seen them give slightly different answers depending on what generates the most money for them.
because if they aren't where they are supposed to be, ie taking a random off to their destination, and they get a call they could be fired. The boss tells them where to go. Why risk their job when they can get paid to ignore you?
Just highlight income coming into your account on your bank statements. It is money coming into your account whether you call it a paycheck or not is meaningless.
Don't try and over-think it or get fancy. They don't care that you are using one account to get around taxes. All they want to see is money coming in. Just show them that anything extra will only make them dig deeper and cause problems.