Jackdaw, how closer are "drifters" and code 0's? Are drifters kinda similar to a code 0, just made out of light spinnaker cloth for very light wind days? And I guess drifters are a stayed headsail, and capable of going higher upwind than a code 0?
I suppose if one wanted to, they could pole out (with a very long pole) a code 0 for very deep reaches and DDW work, just blowing away using drag. But cruisers nowadays spend much time reaching and then motoring upwind, so it seems a cruising asym would be a more versatile sail, since it would be sailed on a reach and develop lift, rather than the drag of a poled out code 0.