I've also found that the bites happen alot when the action changes with speed adjustments and turns. When you check the action along side the boat, change your speed and generally they start to roll when you speed up. Slow back down to where the action is erratic and not rolling constantly...once in a while is ok. Like HTK mentioned, it's the crazy erratic action that drives em nuts. Find a speed where the action looks pretty good, and while trolling try to vary your speed up and down from there. Don't think they should run like a flatfish, Apex's do better going sideways, upside-down, and right-side up. I change out the line to 8lb Maxima, IMHO it lets the lure dance better at slower speeds. HiTech is right about the action being important...I've witnessed a definite bite preference where everything on each side of the boat was EXACTY the same (speed, scent, color, leader length, dodgers, depth)... only difference was one was made by Protroll, the other Hotspot (both customized the exact same way). The action is very close between them, but there is a slight difference and some days depending on your speed they might prefer one over the other... the color being the same didn't seem to matter, they keyed in on the action of one lure over the other.