The 25-year-old has made an excellent start to life at Ibrox.
The 84-year old - who scored 77 goals in 172 appearances for Rangers between 1949 and 1959 – was renowned for his proficiency from the spot, and scored 60 out of 63 penalties in his time at Ibrox.
Summer signing Waghorn has assumed penalty responsibility at his new club and so far boasts a 100% success rate, scoring seven out of seven this season.
Hubbard’s words of wisdom to the 25-year-old were simply to ignore advice on an area in which he is clearly accomplished.
“I’ve given the Rangers penalty taker advice,” said the former Ger.
“I told him if you’re good at something you don’t need any advice from anybody. I think he has started brilliantly but if you give someone advice he’s got to change certain things.
“I don’t think that’s a good thing. I never took advice from anybody. I didn’t practise penalties. If you’re good at something you don’t have to. If I’d have been bad at something I would have practised and I practised at plenty of things.”
There certainly isn’t a great deal that Waghorn needs to change at the moment, and his hat-trick in the 4-0 win over Morton last weekend brought his tally to 14 for the season.
It’s a figure which is already higher than any of his previous campaigns, and the former Wigan Athletic man is loving his new-found effectiveness in front of goal.
“If I get to 20 I will move onto the next target,” he said. “I am just enjoying playing games and scoring goals is a real bonus.”