Deer season is approaching and so are treestand accidents. I've already taught at one KS Hunters Safety Course this year, the second is in Oct. I really put a lot of focus into encouraging hunters to use climbing systems. Seventy percent of falls occur while climbing up/down or transitioning from steps to stand. It is not affective to
only secure yourself once you're on stand. I recommend everyone use a prussic/climber's knot on a rope that is secured above your stand height and tied at the base of the tree-- attach your harness (preferable a 4-point) via a carabineer . This allows you to be secured at all times.
Another part of my Hunter's Education speech is about the patient I treated about 4 years ago: Although he always wore his harness, he fell while climbing... He was 32 y/o at the time and became a paraplegic.
Good luck this season and hunt safe!
Manolito