Numbered markings for gang adjustments (not just lines)
Fiber optics that are don't hang away from the bead. Look for ones that are tight to the pin or ride in a plastic trac so the can't snag on anything they break so eaisly. I have a Toxonics Hybrid IV and I've replaces the fibers on probablly 8 of them so far. A chain is as strong as its weakest link. Montana blackgolds (dusk devil) and spot hoggs are gtwo good ones. with well protected pins.