I received a pair of Centric premium drums and one was the typical black and blue box centric that's all cast with a welded balance weight, and one centric "posi-quiet" drum that has no balance weight but the entire outer diameter is machined. Both have the same 122.67021 part number but are clearly made different. The outer drum edge is also thicker on the machined posi-quiet drum, not sure if that would help resist warpage.
Is the posi-quiet machined to balance? Is there a preference to one method over the other?
Is the posi-quiet machined to balance? Is there a preference to one method over the other?
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