Never trolled out of a canoe, but that, the rod holders or line shouldn't have much effect on line twist, line type, diameter can affect trolling depth. Some crank baits need to be tuned to get them to run well, and some seem more susceptible to damage that affects their running properly.
The old storm hot n tots metal bill could break loose from the plastic and get water inside making them spin, and if you have 100 - 150 feet of line out? by the time you notice you have line twist.