your post really does frighten me david you really need to look a bit deeper into leadcore mate, the stuff just isn't safe for carp fishing
its been banned on a lot of waters because people just can't tie it up safely.
take a long hard look at your last statement in your first post, your mainline breaks but leadcore is much stronger etc etc.
think about it, if your mainline breaks and you haven't set it up correctly that carp gets left towing the leadcore, if your rig is really poorly constructed it ends up towing the leadcore and your lead too
how does the carp get free if the leadcore/lead snags up? the simple answer is it doesn't, it dies a slow and lingering death through starvation
the only safe way to set up leadcore is to use a cv safety/helicopter rig, in the event of the mainline breaking the hooklength can slide off the leadcore and everything gets dumped, any other way of using leadcore is dangerous, safety clips and inline leads used with leadcore are potential death traps if i had my way it would be banned from every fishery in the country
use tubing mate, the esp tubing is heavier than leadcore anyway so it pins the line better, you won't get any lifted scales with tubing and in the event of you mainline breaking you haven't got a fish towing round something it can't escape from if it gets stuck
bini and his brother can't tell the difference in results so that should tell you its pretty pointless using it, its expensive, uneccesary and potentially dangerous so why take a risk using it