I acquired my first Hi-Mound key in 2026. The venerable BK-100 model semi-automatic bug is perhaps the most common Japanese bug in existence. Any bug collector’s collection should have one. The Hi-Mound brand includes a number of single- and double-lever paddles as well. Anyone with eyes should quickly notice the intricacies within the Hi-Mound key designs which set this brand’s keys apart from others.
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