Thanks for the photos Mark. Fun to see how much apparant draft there seem to be in Landys F-16 kites.

Having a right line in the first fold is nice and should be possible, but it's the second fold you need to work with. No wrinkles in the fold and let the luff tape take it's natural position. It looks like there is a rather severe crease at the bottom of the second fold, just to the left of the rather nice concrete brick you used to hold it down <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />
I am unable to download the first image unfortunately.
If you really want some useful information about the shape of the spi, try to get some photos of the spi while flying. Just lie down under the spi pole and shoot upwards into the trimmed spi. Easiest to get a good result if done on land <img src="http://www.catsailor.com/forums/images/graemlins/wink.gif" alt="" /> With such a photo, it's relatively straight forward to analyze hos much draft there is and where it is.