He said he “never once had a single complaint out of Jamie”, and called the star an “absolute trooper”.
Describing the process Jamie went through, he added: “Jamie he would kind of immerse himself into a bit of a zen-like state.
“When we started the process he would be putting music on, we would be watching documentaries, Jamie and ourselves as a team.
“And we would be immersed in lots of things during the process, we would be listening to quite a lot of heavy metal aggressive music which would get Jamie’s head in the right sort of frame of mind.
“But also the tempo of things would help us as well from an application process, so it would get us to work quite quickly as well.”
source: express.co.uk