[Paddlewise] sail rigs

I'm guessing sail rigs (commercially produced or home-brewed) have been 
discussed on this forum before - but to some of us new to the list....what 
rigs do people like to use?  parafoil kites?  simple spinnakers?  paddle 
mounted rigs?  Can the various rigs be used only directly downwind - or can 
you quarter slightly?  Seems like this would be easier to do with kite 
style 'sails'.

Also, a question about rigging a parafoil...never supposed to tie it to you 
or the boat - so do you just hang on to the line by hand - or have you 
devised a quick release mechanism of sorts?

Thanks again - this forum is a great resource!
Keith

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