OK...! lets try again from where i left off...
Now incert the folowing items onto you leader line in the following order, and attach the swivel, i use a parlomar knot.
Using fluorocarbon as a leader is a good idea as it has a greater sinking ability than mono or co polymer line, is invisible and has good abrasion resistance..
The use of lead core isn`t nessesary and aparently it isn`t carp friendly as it stops your lead from being able to slip off the line in the event of a breakk off when using a inline sinker..
If you like you can use a meter of sinking tube to hold your line on the ground behind your sinker, so the fish are not able to detect your line in the water and it protects the carp from your line on his flanks once hooked.
(just never put a swivel above the sink tube and in the case of an inline sinker, as it will prevent the sinker coming off in the event of a break off, and could result in the fish snagging itself and dying...