You should try and place a platform just off your mat and sit your Skytrak on there. Try a spirit level to make sure it’s not slanting. Skytrak’s protective metal case is excellent because it has adjustable feet. You can place this on the ground and then raise the feet up so the Skytrak is level in line with the mat.
Prev post What does the SkyTrak measure?
Next post How do I aim SkyTrak?