Ask Jeff Fenech just how much better Brock Jarvis is compared to the rising star we saw a year ago and he struggles to find the right words.
"I can't even ... Luke Jackson. He fought for the world title, ask him," Fenech said.
So you go to the 19-1 world featherweight title challenger, a former Olympic Games representative and a Commonwealth Games bronze medallist.
You ask him, just how good is Jarvis looking looking ahead of his battle with Mark Schleibs in Canberra on December 11, beamed live into pubs and homes around the country on Fox Sports?
Perhaps the biggest credit Jackson can give the undefeated featherweight, who is 17-0 and chasing an IBF Pan Pacific championship, is he "fights like Jeff Fenech".
"When I say he fights like Jeff Fenech, they've got the same style, Jeff Fenech is an all-time great," Jackson said.
"Jeff trains him and teaches him all this stuff, he knows what he's doing. He's doing really well. I've seen a big difference in him. The first day I met him, he was a kid, back in the day a few years back. Now he's a man.
"Over the six weeks we've been working together, I've given him some things I think will work better for him if he tries this and tries that, just to add more tools to his kit. If none of it works, he can go back to what he knows, and that's going forward and punching on.
"He's a lot smarter than what people give him credit for. He's very fit, and trust me, I'm fit, and he's very fit. We work very well together and I look forward to working with him for the remainder of my career. He helped me sharpen up for my fight.
"You go to Fenech's there, all these guys are there, people are there, TV crews are there. It's a fight, brother. It's a small ring, you're punching on with a young kid who is fit as and fights like Jeff Fenech. He's trying to become a world champion.
"That's what is going to help me in this next fight. I've been going to war in the gym and got good sparring. You'll see the transition on the night."
Jackson's next bout comes against Tyson Lantry (7-3) on the undercard of Australian star Tim Tszyu's bout with New Zealand counterpart Bowyn Morgan at Western Sydney Stadium on December 16.
It marks his first bout since the coronavirus pandemic derailed the sport, but first comes Jarvis' time to shine as he looks to make a name for himself on the domestic scene.
"I've always believed in the process and what we've done," Fenech said.
"Right at this moment it's all starting to fall into place and I've got the kid who I thought I would have one day, even earlier.
"People look at him and think he is 16, 17, 18, but he's 23. He's a strong kid. It's from hard work."
Sparks have been flying between rival camps in the lead up to the bout, setting the scene for the biggest boxing show Canberra has seen in years.
Fenech laid down a challenge to Schleibs' camp, saying he would offer five times the purse and the winner would take it all home.
Then the Victorians called for an overhaul of the judging panel, fearing three Sydney-based judges and a Sydney-based referee would lean towards Jarvis.
They eventually got their wish with a pair of Queensland-based judges being flown to Canberra - even though both fighters are adamant they will win via knockout.