When joining braid to mono I normally use an improved albright knot. Joining similar sized lines a uni to uni works or a blood knot. I fish more than most, probably north of 160 days a year. For most of my fresh water fishing I use Trilene Sensation in believe it or not solar which is a chartreuse color. Flat fish are 4 pound and perch are 6 pound and larger like bull head and white perch 8 pound. I never had the color of the line bother my fish but is much easier to see and detect subtle bites like from Crappie. If I thought using floro would improve my catch I would go that way. I just never found it necessary other than possibly as a fly fishing leader on a crystal clear trout stream. A good rod and reel goes a long way to dealing with non targeted larger fish like sheepshead, bowfin, bass and pike on lite line.