Yeah, kinda gotta watch out for that thing. I added it to this one because I was testing it in single-leg mode just to see if it would slip, and didn't want the adjuster getting jammed up in the shrink tubing.
Working on a new one that uses a nylon bushing, big, thick washer, that doesn't extend past the diameter of the swage/shring tubing. Worked good in another project to keep ZigZag from jamming into splice if you accidentally ascend to TIP and overshoot a bit.