That nash video, if its the one I think it is, is utter garbage. 'Prooving' that slak lines don't work by using a semi fixed lead, and non fluro line. It's just tripe.
Recently Nash have released a lead drop off system, that is the size of a lead, do when you drop the lead, you still have a massive thing stuck in your line.
Those zig bugs, that are just a bit of foam on a hook, for £5.
Bags of special carp rock salt.
And the new miracle £15 a kilo boilies.
They are clever in what they are doing, preying in inexperience anglers that are looking for the next miracle that will catch a fish for them. You know the ones, the people that cover everything in Goo.