Clicker is the only thing that works for me. Touch-activated is too easy for me to anticipate and has too much variability (tickle vs touch vs hard touch). Tried the feather on my nose trick, counting in my head, touching my bow-hand index finger to my thumb, same problems with each. Pulling/expanding until I hear a click & then just letting go works for me. For my self-bows, I have to shoot left-handed. Because the whole movement is less reflexive, I have to think through the process more. I'll still anticipate the shot sometimes and I'm less consistent so I don't hunt with my self-bows (yet) or my left-handed rigs. If I must make the shot, I'll use the clicker.
That being said, I'll watch this thread because I'm open to learning something new on this topic. If I can eliminate the clicker, I'm all for it.