The route OCAS is longer as I have to cross east to west before I can head south clear of CAS.
Where is your start?
At SAM I have to deviate further or accept the water crossing at low level under the airway.
.. .. .. but as you will know, you dont, WCO, CPT, and east of the airway almost to ORTAC with a very small deviation to miss the stub of solent does exactly the same job - doesnt it, also at FL100.
you are set on trying to make a point.
What woudl that be?