I'm with Dale on using mono. One key to deep cranking is knowing the depth of the bait you are imitating and picking the right lure. To do this you need to be consistent in the type and size of line. Normally, the smaller the line diameter, the deeper the plug will run. Because mono will stretch, I feel it has an advantage on light line. I don't use the 10XD but do use the DD22, Mann's Stretch 30 and Bagley Dredge as my deep cranks. My line is 10 and 12 lb. BPS Excel. By the way, I fish my deep cranks using a Quantum 3.8:1 reel. It pulls 15 inches per revolution. I feel the very slow retrieve allows the lure to reach maximum depth while not over working the lure.