I also use a larkshead (center-of-line-bight through clew then ends through bight), because that's the way the PO did it. So far I'm not crazy about this system: it means sail changes take a lot longer as lines have to be pulled out of the fairleads and coiled, and then new lines rigged (since as mentioned above, each hanked-on jib gets its own sheet).
Moreover I find that in heavier air if a tack isn't timed right, it can snag on the forward shrouds. A bowline with a knot a ways back from the clew, like in Giu's setup, might not have this problem?
Finally I'm a bit concerned that keeping ever-tightening knots in the line is bad for its health. I'm thinking of switching to separate sheets, and if I do I'll definitely follow Giulietta's advice.