I really like the idea of being able to switch between over and underwound settings. Does it not have much effect in reality? I know Don Mare does it a lot but I haven't seen anyone else really offer it besides Seymour Duncan on custom orders. I'm trying to decide between Sentell and Wolfetone pickups (they are the only ones I've found that offer humbuckers in dog ear mounts) and neither of them seem to offer it. Don't want to ask if it's more involved than I'm imagining.