If I'm expecting to encounter spots where irretrievable loss of a pole is possible, I tie a leash of tripteaze line to the keeper loops on my LT4. The end that goes around my wrist has a loop tied with a slip knot which I can tighten or loosen as desired.
The leash is long enough to allow me to open my hand and the top of the grip will just clear the palm of my hand. If the tip of one pole somehow gets jammed into something immoveable (like the gaps in bridge decking), I can safely let go while trying to stop my forward m,otion, rather than trying to jerk it free as I go. This has saved several pole sections from serious damage over the years - especially the carbon fiber poles, which won't bend like metal ones.