I prefer cable driven. On limb driven rests brush can yank on that long cord and change the starting position of the launcher, which slightly changes the timing of the rest. Even with cords that have been prestreched on a jig with 100lbs tension on them, and extremely tight knots that don’t move. Anyone hunting the wetside knows the amount of brush we have to push through.
Does this small change in timing affect point of impact? Not sure but it’s enough for me to lose confidence in them. I can yank on my short cord attached to my cable and all it does is get tighter, since it’s attached with a small knot and serving, and the timing of my rest is unaffected.
I prefer the QAD HDX. Easy to set up and never had one fail in over 10 years. They’ve even sent me free parts when I emailed to buy some. Great company.