Questions about using very small fishing line.

1. Has anyone used braid? I think I saw a 6 lb test braid that is equivalent to 2 lb diameter mono. I like braid for bass fishing because it casts so limp and has no memory and is stronger for the same size line diameter.

2. Does anyone use 2 lb test line with a fluorocarbon leader? What main line and what FC leader do you like?

3. If yes to #2 above, what knot do you tie the leader on with? Some leader knots are a bear to tie!

4. I do not fish much water that is devoid of brush/stumps/live trees. Also, my water is stained and some of it very stained. Do you think that, say, 4 lb. test line would be okay to use versus 2 lb. test due to the water stain, or do you think that 2 lb. test line if too superior not to use it on very light jigs?

5. I like to see my line and favor high vis. I want to know where my line is at all times. Do you find that a necessity in low lb. test lines?

Thank you.