I was actually wondering the same thing, but for the Spheroid. Did the numbering resume with v2, or did it start over at 0001?
GP SPHEROID started with a prototype on February 2012, it became available as v1 on May-June 2012, and on September 2012 the same numbering continued to v2.
The v1 uses a cable inside the base, while the v2 is fully mechanical.
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