Noted for his role as the joker during numerous training camps as an amateur, Sean McComb says he is more serious than ever as a professional.
McComb will not be going through any deep personality transplant as it is his ebullient character that has helped make tonight's Ulster Hall bill a sell-out but he does admit to raising the bar when it comes to preparation.
Argentinian Mauro Maximillian Godoy is not expected to beat the 27-year-old prospect but having boxed at a higher level he should give us a better idea of where McComb stands on his professional journey.
The extra edge in training has not only come from more intense sparring but also over a period when Christmas had to be cut short and he found himself a solitary figure at his base just outside Glasgow with coach Danny Vaughan.
Former housemates Tyrone McCullagh and Tyrone McKenna had joined with new coach Peter Taylor, while good friend Paddy Barnes announced his retirement after defeat to Jay Harris.
Barnes had topped the bill in his defeat at the hands of Harris, who will fight for the WBC World flyweight title at the end of the month. On the undercard McComb had his hardest test in nine wins, surviving a flash knockdown to defeat Emiliano Rodriguez on points. Now he is the main event, the man in the spotlight of expectation.
"It's been a lot different in this camp… it was hard getting used to at first with the two Tyrones and Paddy (gone) but I got into a new routine. It can be lonely but you just have to know how to put your days in. It has been a brilliant camp, there has been a more clear game-plan and it's all been a bit more intense," said McComb.
"I do miss Tyrone McKenna's food - we both did the cooking but he was better.
"Paddy is the one I miss the most because we were room-mates for a long time as amateurs. We had a real bond and used to create our own world - we'd go people watching in Glasgow after training and have some fun making up stories about them, having a laugh. That was good craic.
"So it has been different and even over Christmas I only spent three days at home - no beers or drinks because I had this fight coming up.
"I had to stay focused on this but I'll make it up to my girlfriend Dearbhla because we're going to Tenerife on Monday for a good break."
McComb says this will be his last bout at light-welterweight before dropping down to campaign at lightweight, insisting he can comfortably make the new limit which suggests he should be quite a force at 135lbs.
Firstly, he will seek to show he can handle a solid performer such as Godoy with the added pressure of being the headline act at the Ulster Hall.
"This guy is a big puncher, he's got 18 knockouts on his record and he's only lost to top operators," he said.
"He's got good punch selection so I can't afford to be hanging around taking unnecessary punches like in my last fight," added McComb.
"It's a big night for me, I'm top of the bill and the fight is going out to the States on ESPN so I know I have to perform and I'm confident that I will produce the performance I want in front of the Ulster Hall fans."
The supporting bill is headed by what should be an entertaining Irish lightweight title clash between Belfast's Joe Fitzpatrick and Gary Cully of Naas.
Promoter Jamie Conlan said: "It's a fight that I really don't know how it will turn out. I think it has the ingredients to be a great fight."
It's also an important night for welterweight prospect Lewis Crocker, who meets Scotland's John Thain.
The Scot should be a good test for the Belfast man in their eight rounder.
Former World champion Lee Haskins faces David Oliver Joyce at super-bantam over 10 rounds.