Using failsafe do I have to go as far as cones a
All you have to do now is to remember and don’t bottle on it. It doesn’t matter if you could have completed the exercise with a shorter shunt. It’s still just one driving fault - regardless.
The “150” feet is metaphorical. Just use all the available space and make it as easy as you can for yourself. Exactly the same as in the real world.
Go for it.
Pete 