I well remember saying harsh things about automotive designers (don't know it they were engineers or not) that designed vehicles where it almost required pulling the motor to change the spark plugs .... or placing a motor in a van in a compartment where you just can't get to most anything to work on it .... my firm belief is the
designer should be made to work on every one of them .... its good to see the reports above of designers collaborating with folks who have to work on them
Jim
Jim