Twice since I started srt I've become distracted setting up and adjusting ascenders etc only to realize 30+ feet up I'm not attached at the harness. No Bueno! Gave me the shakes hanging on while I wrestled to attach, which because I run a short bridge was fairly difficult.
Phew! That feels good to get off my chest
So, was it only like a knee ascender and a foot ascender that was holding you up or something? Plus maybe a weak tether to an SRT chest harness, maybe?
I still use hitch based systems; I don't possess any fully mechanical ascent/descent devices as of yet. I guess my confession would be that in my earlier times of learning to climb I've had it happen that I'd put my systems together and ascend. Once I got as high as I needed to go I'd remove a Gibbs type ascender that sits at the top of everything, and sit back into my hitch.
One time, because I was tying my hitch the same way I always had, I did not load it up and test it on the ground before ascending. At the top of the tree, the hitch did not bite when I tried to sit back into it. I still had my knee and foot ascenders on, so I did not take any kind of a drop, but I had to lanyard in and re-tie my hitch.
After that incident, I always connect my Rope Wrench or Hitch Hiker based systems to my harness all by themselves, and load them up with my body weight a few times to be certain my hitches are acting as they should, before I add in my other, secondary devices. A byproduct of doing this testing on the ground is that my main system is already attached to my harness before I take my first steps up the rope.
Also, the only real defense against a distraction causing an error in any procedure is to repetitiously run a checklist at multiple points in the process. It can be really quick, but it is the repetition that will catch the possible error. An especially important time for that kind of thing is just before you start up a chainsaw to make a cut. Making sure to be tied in twice before a cut warrants being a bit obsessive compulsive. Also, when making a change to your climbing systems, to be certain you're adequately tied in before disconnecting key components.
I've run too long again; thanks for listening.
Tim