This video will help you locate the adjustment mechanism for several major adjustments on the Sonor Perfect Balance pedals including beater angle, spring tension, beater length, and hoop clamp size. This pedal has a smaller number of adjustable features than most professional level pedals, but in any case you should be able to find which screw to turn after watching this video.
I do own the copyright to this song, along with my bandmates. It is Bells of Death by Bloodstrike from the album In Death We Rot.
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