The ex-Scottish rugby international, 34, will perform the “head banger” lift, which will see him spin partner Ale Izquierdo around by her ankles with her head perilously close to the ice.
The death-defying move is banned in Olympic competitions.
Max said during a break from intensive training: “We have the head banger in the Bolero but only in the Bolero – and you only do the Bolero if you get to the final two.”
His on-screen partner, 30-year-old Mexican figure skater Ale, said: “It’s a very risky move. I feel like I trust Max so much.
“I trusted him since day one when I met him and I knew we were going to make it really far.”
“He’s a good sportsman.”
Talking of the horrific injuries that have resulted in the risky move going wrong, Ale added: “There was a girl who was in a coma and I think another person died.
“It’s a hated trick, they have banned it, that’s why you will never see it in a competition because it’s purely for professional skaters or performing in shows. It’s not allowed in skating in the Olympics because it’s such a risky move.”
Max says he will be nervous on the night but is relying on techniques picked up in rugby training to boost his confidence as well as his fitness and agility.
He added: “This has been the hardest week. We have had three routines to learn but I am just so excited to be in the finals.”