After reading several threads where the location of strong shaping phase has been debated, it occurred to me that it depends on the intended outcome. For instance if the shaping phase is early, then the rest of the turn would probably include an opening radius. When would that sort of turn shape be desirable? When would it be a tactical error? What about when we move the shaping phase to the last third of a turn? Would that mean the turn shape becomes more fish hook shaped? When would that be a good tactical choice? How about the classic turn where the shaping phase occurs in the middle third of the turn? What tactical advantages exist for this turn and why do we tend to teach this type of turn so often?
USSA suggested a while back that the ability to change the location of the shaping phase is part of the shift away from the slow fast line and towards a more direct line. So it has been seen as a stage in a racer's development. Taking that a step further, is that skill important outside of the race arena? As instructors when would we introduce the idea and then how we would set up situations to feature comma and fish hook shaped turns?