This a follow-up to my original post.
The reason for Prism line breakage was a nut. What happened is that after I ought a Prism Jazz, I flew it a couple of times and put a way. A year or so later, when I took out my Jazz, to my surprise, one line was 10 inch longer than the other one. (I must have stretched one line more then the other?). I solved it by a loop with overhead nut. The line held fine with 15mph. However with 25 mph it snapped where the nut was. My sleeve loop became detached from a line. I moved the sleeve from the detached peace of line onto the main line end. I do not have any sleeving tools so here is how I did it:
1 - I took my detached peace of line with a sleeved loop.
2 – Untied the nuts,
3 – made a small loop with help of super glue ( I figures nut would not go inside the sleeve) and with that loop pooled the main line into the sleeve Dacron.
For the other line I only had to move the sleeve a bit to adjust the length. Now that I think about, if it was not for my nut, the prism line would not break with wind over 30mph as it rated at 80 lb. The kite would probably fold before the line would give in. Feverless I overreacted and ordered a Sensai trainer line rated at 200 lbs. I guess I will use them when I get a trainer Kite