As for leaders, I use them on every setup. There's a LOT
of debate here on this topic, and frankly, it doesn't really
matter if you use one or not. Here's my quick reasoning,
and it's just one reason, but it's good enough for me:
Power Pro and Power Pro Super Slick 8 braids are not the
cheapest out there, so I like to keep as much of it on my
reels as I can. I tend to retie hooks a number of times
during an outing, and by using a leader I don't cut into
the braided mainline as often, thereby extending its life
a bit.
If you learn to tie a good leader knot, be it a uni-to-uni,
an Alberto/Albright, an FG knot, you can have 100%
confidence in the knot. I know I do with uni-to-uni and
mod'd Albright/alberto knots.
That argument (leader or not) gets "religious" in nature
so suffice it to say, use one or don't. The above is a solid
reason for me.