Any one knowledgeable with these. CXL sky shark. Used in two builder the 150 l.e. 250 spine, spreader. Large diameter but read that they are 15% stronger than previous versions. They seem more flexible than the p 200 a used on another kit for bottom spreader but are 12.5 g compared to 16g of p200. Mainly interested in large 8 ft light wind dual line. Trick capable above precision so made first one very wide aspect. Probably too much. Just experimenting and having fun. New to sewing so it is sloppy and slow go. On to #3 8ft again more total sail area, much wider sail tip where a batten will go form TE pocket to LE connector. Will try taking out all non taut areas with micrcarbon from TE pocket to top spreader or LE connector. Back to question? Think these are used for quads. Kites and Fun Things sell quad frame kits with 150 250 350. Think rebound is more responsive. The price is awesome at 3.50. 2.50 @ 12. Any way let me know if I might can lighten up the future kites with out sacrificing strength. Like large wind range. I am a very lame pilot. Have a micron I love to fly in hurricane winds and baby tana light wind. Bought a Stormy Pete for blasting wind but plan to lighten it up, too heavy. Any input would help. Use all homemade connectors and fittings because I am frugal and enjoy using stuff I have ie plastic cloths hangers for stand offs, fuel hose LE connectors etc. Thanks for any input! Michael marmarasmichael@gmail.com