I assume the battens are the same as those on a Prindle 18. On my jib, I removed the pockets and sewed them back on at a 45 degree angle. I know others who have used this same method with good success. (HobieGary on his Mystere 6.0, for one). The jib rolls up easily after this and it doesn't seem to effect performance.
Here's a photo

Jack Hoying
Fort Loramie, Ohio
Prindle 18 #1645
http://www.bright.net/~jmhoying/sailing/prindle.htm