I use both FG n FC knot and find both as good as the other . Depending on how many onboard and weather as to which to use and each near as fast to tie as the other.
With the SC knot you must do your half hitch at the end and pull up on the leader to stop it sliding and really put an effort on both braid n leader tension to tighten then add your other half hitches n finishing hitch etc.
The only two leader to braid knots I use. To stop the leader tag end from clipping on the guides I wet n burn with a lighter the tag end of the leader n push it against the knot.
No probs that way with guides.