Set-up Instructions:
Release a golf ball in the Boomerang's target to select a level putting surface. You can tell a surface is level when a ball comes to rest at precisely 6 o'clock on an imaginary clock face (fig 1).

If the ball does not rest in the centre it's possible you've selected an uneven surface. While you can compensate for a slight break it's much more preferable to find a better place to practice.

When the Boomerang is set up correctly any putt that curves off line is attributable to the stroke and nothing else so please take the time to do it correctly.

Now turn the Boomerang over and adjust the height setting so the ball rolls your desired distance (fig 2) - this can be up to 15ft on a surface speed which stimps at 11.5 or more.

Adjust the target depth to suit the height setting you have just selected. To do this begin with the target area raised level with the green surface then wind it down a quarter turn at a time (fig 3).

When a ball released from about an inch into the target catches (fig 4), but any further releases the ball then you have the optimum target depth ensuring a perfect lag putt will catch and a good matchplay putt can easily knock it out.

The Boomerang is now set up to provide quality feedback, so please begin your practice session and enjoy!

If you find it difficult to trap the ball in the target don't be tempted to make the target deeper. The rule is that the easier it is to catch a ball, the harder it will be to release it. If you make the target deeper chances are you'll only frustrate yourself trying to release the first ball.