How was his chin? I know he was really hard to touch, but i've seen he has 6 loss on stoppage? I've never see him fight
Some of those were dives and 5 out of the 6 stoppage losses happened when he was way over the hill. Take this into consideration, in his first 150 pro bouts he was only stopped once by ATG sandy saddler, post plane crash. While I dont think he was ultra durable, I dont think he had a weak chin either, and he certainly had amazing enough defensive too not get caught by 95% of fighters in history.
His chin was solid. At least one of his kayo losses he took a dive. Saddler roughed him up and battered him to the body until Pep couldn't continue.
As you say he was hard to hit, so he didn't have to take many flush hits at all. His chin was solid enough. As said before he took a dive against Tommy Collins and a few were when he was past his prime. One aswell against Saddler he had to retire after a shoulder injury, and Saddler often employed dirty tactics aswell and was tall and powerful for a featherweight.
