I’ve used leadcore almost exclusively for over 20yrs and I’m with Nick on this one, if you’re not sure about it, give it a miss, it can be dangerous if not set up correctly. I only use helicopter rigs as the hooklink can separate from the leadcore completely in the event of a snap off. Besides, modern tubing and other rigs are just as effective nowadays. With modern fluro mainlines, you can achieve very good rig concealment fishing mainline straight through to the lead. Check out the vids posted above, chat to your tackle dealer when they reopen, ask them to explain basic carp rigs to you, any tackle shop employee worth his salt will take the time to educate you, (then you buy what you need from them and everyone’s a winner) do you have any mates that carp fish? Otherwise, buy some basic bits, ready tied rigs, tubing, inline leads, lead clips etc and have a play putting it all together, I learnt through experimentation, you also have the bonus of being able to post your results on here so you can have the confidence that they are safe and right. When a ready tied rig reaches the end of its natural life, don’t bin it, take it apart and work out how it was tied so you can emulate it. Don’t be afraid to ask for help, I learnt through asking anglers what they were doing.