Hi Gavin,
You are correct, there is now no bobstay, The spinnaker just flies from the spinnaker boom which bends up slightly under halyard tension - the same pushing the boom back into the fitting. A word of caution on halyard tension - it is possible to pull a knot through the block at the top of the mast leaving you with the spinnaker jammed up. It may be safer to fix the head of the spinnaker using a halyard ball stopper as is done on the mainsail halyard.
I run the furling gear down the starboard side and tie the tail attached to the jamming cleat to the aft mooring cleat but not 100% sure if this is how others do it. So far, furling has seem to work best when pulling furiously in the direction of the arrow on the jamming cleat but would be interested in how other advise to furl.
I have tended to lead the sheets just around the jib stay and jibe by furling and then unfurling. The sheets didn't seem long enough to to run around the fore of the spinnaker furler to be able to jibe the sail.
For the first time, I waited for a very calm day before launching the spinnaker for the first time. Still managed to get it well tangled at last years Mylor raid. If you watch the video on the SY you tube, Matt comments about not known why someone was flying their spinnaker while tied up alongside in Restronguet creek - it was me trying to untangle everything!