I've gone to 15 # braid on my spinning rods to get away from the wind loops that straight FC gives you. Fishing upstate NY soon where there lots of Zebra mussels, even on the milfoil; so I don't feel confident with 6 or 8 #FC leader on the end of the braid. Does it really matter if you go up to 12 or 15# FC, which is supposed to be invisible ?????????