![]() This needs to be perfectly flat and consistent for the head to seat and tune properly. The bearing edge is the part of the drum that the collar of the drumhead touches (or near the collar). These low-tension spots effectively work like damping rings since they are not influenced by the surrounding film and add nothing but weight to the head and interrupt the natural movement of the film. Repeated bashes with a drum stick cause deformations in the film over time. Spots can also be caused by imperfections in the drum head. It is possible to reduce their influence though. No matter what you do, it’s impossible to eliminate these ‘tension spots’. The head film tension can become incredibly complex depending on the hoop, head, bearing edge and tuning practice. Similarly low tension misreadings can occur from being near the edge of a spot. It’s possible for the dial to give a reading of high tension that does not directly correlate to the tension rod’s input due to the gauge head pressing down on a ‘spot’. Spotting is the cause of misreadings from the dial. When there are points of tension in the film of of the head that “cross”, they result in higher tension at that point. Spotting is a combination of the above concerns. Jump Ahead to learn to deal with this Hoops Part 2 Inconsistent - Who knows!? Usually some combination of bow, and possibly an increase or decrease in tension on both sides!.Usually wood hoops, but a variety of low quality flange, die-cast, stick saver etc… hoops can fall into this category! Some wood hoops are incredibly consistent as well.Flexible - A more flexible hoop will have less transfer of opposing tension.If you put tension on a point, then the point opposite will decrease in tension, and be more responsive to decreasing tension further. Stiff - A stiff hoop will put opposing force on the opposing points.Depending on the type of hoop a variety of things can happen: Turning a single tension rod does more than increasing tension on a single point. ![]() The response to the data from the Drum Dial varies based on what is influencing the data, in this case: the drum hoop. The Drum Dial does give you an indication of the current film tension, but it does not indicate how to adjust it. Surely these differences do not matter, because the purpose of the Drum Dial is to tension the head based in the film’s tension? RIGHT? RIGHT? With high-quality die cast hoops it’s possible to almost evenly stretch the entire drum head film with only two tension rods.
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