Used gear is kinda like used .............used wraps fer cheap futher muckers!
Plastic wire tie(pink of course!) was my final lock of choice on twisted clevis, thought the lock nut, plastic lock insert and tight threads i think are supposed to do it.
The cam can't be too worn, nor bolt, by visual inspection. As mentioned the devices each are made for a certain diameter of host line. There is usually an indent in the cam shell for that diameter of line to fit. The cam is made to torque so much pressure to seat maximized at a certain cam rotation onto a set given diameter. At that point, closed on a certain diameter line, the 2 points of pressure on the cam; of pivot and rope contact are in alignment, not so much opened to kick out as easy i think.
i like the Hip STD (Self Tending Dee?
) strategy for lanyards for 2 way adjusmtent loaded, light, compact, discreet etc, and have shelved my microscender w/twisted clevis. i think speeder Chisholm at TB was the first i heard of with the friction hitch straight to D for lanyard adjuster; but we mighta come up with lacing the tail through the D, to double use the D for mount and tender for the friction hitch; write here at AS; as all these ideas were flyin at once.