Thanks Graeme, I've got both on now but still need to adjust the parrels and connect the sheets to the main.   A little too windy and wet here on the east coast U.S.

"I have been thinking about something like this, but no experience yet. Could you please explain this in a little more detail?"

I'm assuming you mean going from seizing the battens to using batten pockets?  My sails are based on Van Loans  so my original sails were made similar, using seine twine to attach each batten to the poly-tarp sails.  There were 10 battens total and the spacing between seizing was about 15".  It was a long process, punching a hole in the material on both sides of the batten and making two round turns thru the same hole, made off with a square knot and stoppers in the ends.  So when I decided on new sails, it didn't take long to decide about using pockets for holding the battens.  I had the new sails professionally made and gave them a batten from the main to use as a guide for determining the correct pocket size.  My pockets are open on both ends and there is a section along the mast line open so I can seize the parrel ends. 

I hope I've answered your question....

Thanks Kurt.... yes, since I hadn't a clue about sailing Junk rigged boats.  The heavy poly-tarp sails worked out great and were cheap and easy to make...and flat worked for me, so didn't feel the need to change.   I was going to make the next set but my "loft", the local Civic League was being used more often than five years ago....having to set up and put away each day was not what I wanted to do....

Thanks also, Annie.... I really like the batten pockets over lacing each batten on with seine twine like I did before!  Yes, can't wait to get out sailing!  I had them made by Ullman Sails here locally.  I knew they worked with traditional sails so figured they'd be the ones to do it.  Great bunch of people.  

http://virginia.ullmansails.com/team/jerry-latell/

Very nice! And flat. Wise to prototype and fine-tune. Good luck.

Kurt