dragging a deep running crank bait, I use 20/6 braid line, the no stretch factor helps in hook sets and the small diam gets the bait down deep.Next ypou need a l;ot of line out to get that bait that deep,a min of 25 yds in some cases. On the retrieve instead of fighting the lure with the reel. I pull back on the rod and then reel. Something you may want to try is trrolling planers from lure jensen, they come in different sizes from 10 to at least 30 ft, they require a fairly stout rod but trip when you get a strike, they float at rest and dont usually snag up.You can use a floating rouge on a 20ft planer or a a 200 series bandit on a 10 ft planer over 20+ water.You can get them from cabelas, I got some off the counter at BPS in northern ind. But braided line is almost a must, there is a lot of stretch with mono.