I really liked Filament Clip V8, but I found all my exotic PLA filaments (gold, silver, bronze, wood, glow, transparent) would break after about a year in storage, right at the grab channel. I read that I was stressing the filament with the bend radius, and the authors of the other clips redirected me to low-stress clips that worked for them. However I cannot have things jutting out of from my spool walls (space is very tight in my filament storage), so I cloned a clip I loved, and now we can change the grab_channel_width. A narrower channel means a larger bend radius, or less stress on the filament.