Problem with Davis was he never jabbed through the target,he was much too concerned with getting hit in return, hence a lot of his punches fell short.
Saint Primos jab was so powerful and fast it transcended light and travelled in a state of darkness it was almost as if he didn't make contact.
Holman William's had a unique jab he brought up from his waist. He has a way of landing it that felt like a backhanded uppercut to his opponents.