I tied some 8# side drift rigs with the P-line CX flourocarbon coated line & lost a couple of nice fish when the leader broke (I think on the fishes teeth). The UG 8# is thicker dia .011 to the Pline's .0095. Maybe the 10# would work better for you. I do like the Pline 12# CXX for mainline though. The straight cinch knot sometimes slipped for me & had to use the improved cinch.