I’ll second the rod in hand, but, I don’t do any open basin trolling….yet. Seems some rod pumps here and there will trigger bites and constantly adjusting to bottom is easier.
Number one key for myself is to zig zag the structure. If you are getting fish on the turn you know to maybe slow down, straights speed up, and where the lure is when they hit, deeper part of the structure or shallow.
Focus on how the fish are hitting the lure. Back treble, middle, bc engulfing it is the goal. Randy Weiland put a real nice seminar video on here of this and has put more fish in my boat. Small adjustments will trigger bites.
I also find myself back trolling whenever possible, more control and easier to keep lines out of the motor with the kids or rookie in laws