Just got the sucker punch friday and been practicing, i'm new to this. Been shooting this week and noticed some fray near each cam. Is that normal after 2 or 3 days of practice or am i torquing it too much? Also that lil black stick/rod that holds the other cable under the finger pads isn't tight, am i supposed to tighten that or move it so it doesn't rub the arrow? Thanks for any info....