"First of all, choose your weapon of choice," Ash tells Men's Health. "Whether it's the kitchen scissors or you own your own clippers.. they'll do. The aim of the game is business at the front and party at the back."
The truth is, there's nothing intricate about the haircut. And while Ash is a fan of ripping in, he notes that you shouldn't rush to to take big lump from right off the bat.
"With the scissors, follow the natural hair line and start hacking away. Follow it around your ears but be careful not to take a chunk out," he warns.
Next decide on the guard (the length you want), and begin in front of your ears.
"If you're using clippers, choose your guard and starting from where your facial hair would be (typically in line with your ear), move upwards with the clippers – don't follow the shape of the head unless you want a skullet...you want to keep it nice and square," he continues.
If you're looking to get a fade down the sides, gradually change the length of the guard - don't skip numbers though, go in order – 4,3,2,1.
"The best advice I can give is that it's like growing a tree," Ash adds. "You need to prune the sides and patiently await the fruit of your labour to flourish."