Bolo. The technique is fine. No winch is ever needed and it is the quickest and sometimes the safest way to put away the headsail. I singlehand 80% of the time and have no problems doing it. In fact i am often heading downwind on approaching to the many marinas i frequent (50/50 chance). This is not to mention the fact that when when flying the kite by myself (or crewed) I have to roll up the jib after hoisting the kite and roll out the jib when dousing. Considering that some of the sailors here don't fly a kite regularly or sail in lighter conditions, this fact might elude them.