You can use these two courses to try out the app and practice your technique. The QR barcodes can be downloaded by right clicking and select 'Save Image As'.
On a Score course each Checkpoint has a points value and can be visited in any order within a fixed time limit. The challenge is to collect as many points as possible within this limit but be warned points are deducted when the course time is exceeded. (links to information on the penalty points)
Sample Score Course
A Linear course must be completed in the specified order. The challenge is to complete this fixed course in the shortest time possible. There is a maximum time held on the App but this is only a fall back time put in to save your battery by shutting the app down if the course is not completed and the app is left running
Sample Linear Course