I carry 4 spare straps and give a visual to each stick before I climb. Down here there is a problem with squirrels cutting straps and lift ropes. I remove my stick ladders and lock-ons after every season and use new straps each year. On my lock-ons I double strap the platform and on the ladders I double strap the ladder to the tree. Also have rigged a HD fall restraint rope on every lock-on and ladder that I have set. Keep my climbing harness attached to the rope as I go up, using a Prussic knot (sp?). Takes maybe another 3-5 minutes to make the climb, but I figure that it is a small price to pay for the extra safety.
From 24' .... you are darned lucky , period. And I am glad for you.