I will need to read more about him. he was a magnificent athlete.
did you know that lendl once hired pistol pete to help him with his return of serve.
he paid pete to come to his house and blast serves all day so he (lendl) could work on his return.
lendl knew that to truly dominate the sport he had to improve his return of serve.
Don't know about that herc darling but I do know Sampras stayed at Lendl' place about 3 months to work on discipline, work ethic, mental toughness etc. I am not sure if Pete was known for his return game though it was highly deceptive. It's not like most of matches were settled on TBs. Quite the contrary in fact. He just wouldn't go for more than 1 break since he could easily hold his own serve. However, he found Ivanisevic and krajicek serves hard to break - especially those of Ivanisevic so those would settle in TBs and especially at Wimbledon since the courts were really fast.