use this script for sniper and scout, and you'll probs get good hitreg.
// "Soft" settings (hitreg oriented)
//alias net_soft "cl_interp 0.05 ; cl_interp_ratio 2" // for updaterate 66
//alias net_soft "cl_interp 0.055; cl_interp_ratio 2" // for updaterate 40
// This is the safest "comp" setting. If you're experiencing trouble, use this. If you still have trouble, go back to defaults.
// Also, use this on things that "can not" miss or are especially susceptible to "shitreg" for you, meaning sniper rifles and (for me) scout weapons.