I use 10# Power Pro in the yak with 15# leader. I set the drag just as I normally would off land. If I should get hung up I can still break it off without a great deal of trouble(the leader breaks 95% of the time). I have had at least 15 cownosed rays hooked up this year and can usually get them close enough to cut the leader within 5 min. or so. Wish I could do that off land. I do tend to palm the spool and put as much pressure as I can on them however. Even when that fish is taking line with the drag set normally you will still get a pretty good ride. I wouldn't set the drag too tight as it does take a few seconds to get the yak turned and moving.