First: Congratulations, the Chaparral LW is an amazing knife - and me saying this means something, cause I am more of a bigger-knife-guy.
I got mine not too long ago and carried it most of the times unclipped / loose in the zippered pocket of my (winter-) mountaineering-pants, so I have really not much experience conerning the clip.
Just did a little indoor pull-out-from-IWB-comparison Chap vs Endura, can´t notice a real difference concerning one giving more resistance, they feel equally tight clipwise.
I generally don´t have much experience concerning wire clips, so I can´t be sure if the following will work, but nevertheless: On the Enduras I clip to the pockets (unzippered ones) of my hikingpants I always remove the clip (not a wireclip, of course), bend it down a bit and attach it again, so it has more tension and sits tighter; Tighter than I would like it in a regular EDC scenario when I wear Jeans, but good to prevent loosing the knifes while hiking in the outdoors.
What I´ve noticed: The more horizontal the rims of your pockets are (like on most Jeans), the less likely it is to loose the knife acccidentaly; unfortunately on many hiking pants the rims are more towards vertical - better for general fast acccess to items in the pocket, but make it more likely for the knife to get lost.
Top three going by pocket-time: Endura 4 in VG 10/Micarta-scales; Stretch 1 in VG 10; Endura 4 in HAP 40