He oversaw recording sessions before sending the files to Sneap for final mixing - which Gibson describes as a whole other skill set. In the fourth installment of Exodus' studio update videos, he says: "I just decided to take a class and learn how to do it - learn what all the buttons actually were. Then it came about that with Gary doing the Slayer stuff, our time is a little bit shorter because he's gone a lot of the time.

"We were really getting down to the wire when we were going to need to make this record in this window of time. We were having a bit of trouble getting Andy Sneap who is also busy all the time. So I just stepped up and said, 'I'll do it, we need to get this done.' We were gonna track it and send it to Andy and he'd mix it. A lot of bands do that."