And I concur.. And it varies from saw to saw, bar to bar. Sometimes it's a worn goove in the sprocket.. Feels right in the groove but then hits higher ground and tightens upIf I remember correctly -low pro chain is just a bit shy of of the link spacing of standard 3/8 even though it is called a 3/8 spacing were talking a few thousandnths here per link- but that adds up when you have a long bar.
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