Where is a regulation which says you must comply with a circuit procedure OCAS ?
There is'nt one. However, good airmanship is at the root of the discussion. One of the issues with FIS/AG/Airstrips, is that it can become so unruly, that dangers lurk in every turn.
No, just wait until you're clear of the ATZ before turning west, not difficult
That is a very sensible post, and what is wrong with this approach? Surely self discipline, is what is required in individuals flying, and with that controlled discipline, should come safer flying