I agree with a bunch of the guys.
10# is too light for a reaction bait like Spinnerbait (also has a lot of resistance in the water)
B/c of the way it feels and how easy it is to detect fish biting a spinnerbait you can get away with using mono or copoly. Same price and will not break.
I fish 15# maxima mono (amazing)
I've also beefed it up to 17# P-Line CX...I like how maxima handles better (casts further)
Finally, Trilene knot is good but I have fallen in love with the San Diego Jam knot. It cinches better for me and I dont get flouro breaking off on me. Best part is san diego jam works great for mono, copoly, flouro and braid! Just alter the # of wraps