I also used my usual 15lb leaders and did fine. Just played with the drag. The only fish we lost were the ones that didn't hook themselves off the downrigger.
One thing I found out which may help with the insane crowds - the fish bite great in the evenings. So evening fishing will work as well. May even find some parking that way.
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Mike, Editor
www.washingtonlakes.com "Featuring readers lake and saltwater reports."