Show-Off

I hate this quest.

To do Show-Off you have to first ride the horse [npc=127718] at 51.51 26.25 Norwington Estate stables.
After that step into the arena with barrels and fences to start the quest.
You'll have 3 abilities:
[spell=252847] - speed boost.
[spell=253030] - spear attack in front of you.
[spell=253494] - throw bolas at zeppelin
For each killed barrel with gnoll you'll get 1 point, [npc=127708] - 50 points.
When you jump the fence you'll get a stacking buff [spell=253498] which increases points gained after a kill by 1, maximum stacks - 100.
You have 60 seconds to do the quest.
Important part is to shoot zeppelins, you'll hear when they come out when [npc=124802] yells "Zeppelin out!".
If you failed the attempt talk to [npc=124802] to start again.
Make a macro:

/target Paper
/click OverrideActionBarButton3

so you don't have to click on zeppelin. (You can put macros on any secondary panel, only the main panel spells are replaced. Secondary panels are hidden when you are in the vehicle but the macros bindings still work.)

Strategy that worked for me to get 600 points:
Enter the arena from the east side of Norwington Estate.
Follow the loop of 6 fences which form a circle path, leave the 2 fences on the other side of the arena, you don't need them.
Make the first loop without hitting gnolls to accumulate [spell=253498] stacks (7-10).
Then include gnolls in your rotation, they should respawn when you come back for another circle run.
And don't forget to shoot zeppelins.

/way Tiragarde Sound 51.51 26.25 [npc=127718]
/way Tiragarde Sound 51.60 27.16 [npc=124802]

Show-Off video: https://www.youtube.com/watch?v=FtOlwIL41KQ
The Reining Champion (score 600 points) video: https://www.youtube.com/watch?v=qmx86TG_DMk
How to setup macros: https://www.youtube.com/watch?v=zGLnBRv-9cI

There is a special place in hell reserved for the tool who designed this Q. It's not a test of your ability to use your character, merely a test of how dexterous you are with a mouse or keypad. If you're not that nimble, or your processor is not so fast then this will be a 'once in a lifetime' visit then consign to the bin marked 'Crap Quests'. A gigantically pointless exercise, for the Super Mario lovers.
Fyi...this is not the Q needed for completing the 'Norwington Estate' Q line (which you need for 'Sound Plan' achievement - which you need for Pathfinder pt1). You do 'Show me what you've got' for that, which is the same task you only need to score 150 pts though. See my post for that Q for a guide.