Part of your comment is one reason I don't like Helicopter set-ups, especially with a "naked" line section of light breaking strain mainline. You should be using a line strength of at least 15lb to my mind.
Have a read of these, some good pics and ideas here:
http://www.carp.com/carp-forum/viewtopic.php?t=51296
http://www.carp.com/carp-forum/viewtopic.php?t=36456
http://www.carp.com/carp-forum/viewtopic.php?p=519408#519408
http://www.carp.com/carp-forum/viewtopic.php?t=37603
Thanks for your patience. That last thread had a brilliant picture in it and would be my preferred set up. The only thing is, if the beads can release then how do you prevent them sliding down the line on the cast or when playing a fish? This is probably obvious but not to me I currently use Daiwa sensor brown 15lb. I don't want to use a leader so should I go for a higher breaking strain line? The new lake I am fishing has some nice twenties and probably thirties too by now. What size beads should I use and which of the two sizes of sinker?