Very, very rarely. They didn't land flush. He was the master at moving his head just a fraction of an inch to evade a jab. As you can say in footage if you have any clue what you're looking at (which you don't).
He had exactly one fight without Steward. The Benn fight. He was already well on his way to being a one punch bomber by then. Either Steward lost control/interest long before then or these boxing skills you continually praise to the heavens never existed. Julian Jackson was 8 years his senior and starting on the decline in their first fight. Still, the smaller man was tuning him up through most of the 5 rounds the fight lasted. G-Man looked bewildered circling all the way around the ring, hanging on the ropes trying to get away from Jackson’s punch. His long, telegraphed right hand (that left him completely open for the left hook) wasn’t landing, so he was like a fish out of water. Not a very deep bag of tricks, in other words. The exact opposite of the ghost you continue to describe. Maybe he started off that way. That’s what I’ve always gathered, anyhow. If so, it didn’t last. Not long enough to matter.