for easy kite-turning hooked in a "normal" harnessline try a mono-swifel-loop (rigth word for it?) for example from dakine, no difference to the chickenloop.
but the best on going with only 2 lines is, if you let go the bar, wich happens quite often while training the handlepass or other new moves, the lines will not tangle at all (but sometimes the brindel...

. if you let go the bar with 4 lines, it tangles soooo often and then you have to swim back ...
edge harder!
kitehead