I am sure you all have received this but for those who haven't, here it is.
An excellent article (p11 and 12) from CAMS about the importance and mechanics of the Safety Harness.
Makes you think hard when driving next, either on the track or on the road.
http://docs.cams.com.au/Speed%20Read/2013/Speed-Read%20FINAL.pdf (http://docs.cams.com.au/Speed%20Read/2013/Speed-Read%20FINAL.pdf)