I've been using the Chronarch for a little over 2 years now. It has been a great reel *except* that it has a hard time on long casts with really really light tackle. I'm talking light like a 5 BB (1/2")slinky. Aside from that, the reel has yet to experience a failure or any kind. The drag is crystal smooth after 2 seasons of abuse. Sorry, no experience with the SF model. Can't help you there.

Parker
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Tule King Paker