Quick Tip to aid your accuracy in the arena.
To aid your accuracy before your schooling session, use a rake in the arena to draw a straight line from A to C and then again from B to E.
This will help you to work out if your circles and shapes are accurate. It will also show you if your straight lines are straight.
Don’t forget you will be penalised heavily by the judges if you are not accurate. It is the most basic of requirements and never the fault of the horse!