Suggestion: Throdown Barrier shouldn't be a wall

Unlike the challenge barrier - which starts a countdown when you leave the area - the throwdown barrier is basically a wall.

I think it would benefit if the barrier had a buffer zone around the actual throwdown area. This would allow you to do throwdowns, which are limited to one object, e.g. only a grind bar. This makes the feature more interesting and allows more specific and/or challenging throwdowns.

The Buffer zone can be used to gain speed or prepare for the trick but tricks performed inside the buffer zone do not count towards your score.