I use Invisx as well, my flouro all around casting rods are spooled with either 8 or 10# - I use them for stripers, hybrids, walleye, and bass, and routinely catch large fish with no issues as long as I retie as required and replace when it is needed. I use more care when tossing 1 oz spoons, but those line sizes work well. I have one glide bait rod with 15# currently,, and again I use care when casting the bigger stuff. I use heavier braid/flouro for flipping docks/cover although I am almost always out in deep water.
Mike