Best Flourocarbon For Baitcast With A Finesse Application

[Hooligan]

well what cuases deformation?

Kinks from a backlash, for instance. Wrapping your line around a hard edge to pull it free from a snag. Anything that distorts the cross section in a manner that is anything other than axially will cause weakening in fluorocarbon. It's also probably true that lower quality lines will suffer from being stretched, but generally because of the structure of fluoro it won't be an issue.