I agree with Gary (by the way, nice photo Gary) about the use of a roller furling jib. I had one on my H16 and I'm installing one on my P18. It's not only great to adjust the power when soloing, but also with crew. Very handy when launching, docking, taking a break, etc. If anyone is interested, I still have my Hobie 16 roller furling jib and upper cable.
http://www.bright.net/~jmhoying/rfjib.htmJack