Thread: Do Singh Grooves Work?
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Old 06-04-2011, 07:53 PM   #2 (permalink)
gone-ot
...beats walking...
 
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...any such "cuts" will both: (a) lower CR and (b) increase chamber surface area (bad for pollutions).

...maybe applicable information? http://www.jeremiahsviolins.com/grooves.htm
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