Erik-
Should have read your question a little further. To prevent loose leaders on the insulation, tie a swivel on the top end of the leader. Start with the swivel in the middle of the insulation between the cut, then wrap tightly around until you can bury the hooks. You can drop the rolls, step on them, etc., and they won't become loose.
Also, the leaders will "iron out" on the first cast - you shouldn't have kinked line. If you do, try another line. I use Ande, and it works great.
Hope this helps - Mark.