Doesn't some blame belong to CAA/JAA if arcs not taught and tested? Surely it's the authorities who specify the bare minimum hrs and skills required for licence issue from an integrated course? Without opening JAR-FCL it may of course state that any type of instrument approach could be tested but common practice may make it a rarity, perhaps? i.e. if it's in an AERAD then examiner could pick it. So "not on the syllabus" isn't an absolute statement just a reflection of what goes on.