sphere within a sphere

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Original poster: "steve" <steve_vance-at-cablelynx-dot-com> 

Has anyone heard of this.

http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=3804496648

  To go from 24" to 37" is a big improvement.
I don't see how this could improve spark length If the coil was
properly tuned to begin with. Someone please enlighten me.

Steve Vance
<http://fire.prohosting-dot-com/~bonestc/index.htm>http://fire.prohosting-dot-com/~bonestc/index.htm