Sorry it should of said Kordas youtube videos haha predictive text!!
Most waters I fish are doubles waters and not full of huge carp. He was using a Korda Krank hook with this rig.
One of the main reasons I'd thought of going bigger is because I fish margins a lot and feel like I see lots of fish activity and fish bolting off but without a run so wondered if the small hook I was using just wasn't catching hold