Sheldon,
I angled the jib battens on my P18 and tested it out yesterday. I had been using the jib without any battens since I switched to roller furling. We didn't have great winds, but I noticed that the jib definetely fluttered quite a bit less and I could point higher than before. I did the sewing myself and it was really easy. The trade off for roller furling has been more than worth it to me. I would think that since you usually go solo, it would be even more important to you.
Later,
Jack Hoying
P18