SG (Spring Version)
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Spin Gear Core: SG (Spring Version)
Spring-loaded tip, sharp but decently wide - on a lower base or without the jumping gimmick the tip might be okay.
Very tall, even when not extended.
Extremely tall and very unstable when extended.
Only designed to work with Jumping Base (Trygle)
Does fit in Jumping Base 2, which locks it in the retracted position. This results in marginally better performance than with its own Base.
Some versions have a removable tip. These versions allow the shaft section to be removed from the part and optionally replaced with those of SG (MG Spring Version), which makes for a slightly shorter option for use with Jumping Base 2 combos, allowing better stability.
Spring strength appears to vary across SG (MG Spring Version) and SG (Spring Version) examples. SG (MG Spring Version) generally comes with a stronger spring, though this is offset by the longer casing reducing tension somewhat.
Lower tension springs reduce the bounce strength, which helps avoid self-KOs on bounce sometimes.