I use the thin spider wire when bobber fishing and mono for my leader. I've found that the braided spider wire floats and is easy to pick up off the water during the hook set so you don't get all that drag. Also it doesn't stretch which helps with a quick solid hookup. I've bobber fished next to others using mono who were getting the same number of bites but their hookup to bite ratio was much lower than mine.

GOOD LUCK laugh
TIGHT LINES laugh

Mike