Since we are discussing fluorocarbon here, perhaps a meeting of the minds of the fluro pros can enlighten the members here:
1) If you use braided main line, do you find using a length of fluorocarbon where the float is (between braided line and the swivel to the leader) helps with more hookups besides just using fluorocarbon leader?
2) Since fish cannot see fluorocarbon, do you find using lighter fluro leaders give you more hooks than heavier one, like 10 lb compared to 12 or 15lb fluro leader? Since you can hook a spring at times when you target coho, it may be less likely to lose your leader and hook on a heavier leader than a light one. But this is only beneficial if using heavier leader does not affect hookups.
3) Since fish cannot see fluorocarbon, does the leader length matter? Say 12" compared to 18 or 24 or 36"? Do you find any advantage with extra long fluorocarbon leader?
4) Do you find anything other than Seaguard Blue Label reliable? I use 20lb Blue Label for that 6 ft length between my braided power pro and the swivel so my float is sliding on this length. I often wonder if using mono for this length can affect hooking efficiency as I mention in point 1). Blue label is expensive. Do you find other brand adequate besides the obvious junky Varnish?