What kind of fish do you fish for?
I have a couple rigs like that, one's a lighter rig for panfish, the other is a more "general all around" rig that can do a lot of things.
I have 10# test on the lighter rig, and 20# test on the medium rig. Both rigs have a little mono for backing, to keep the line from spinning on the spool. I use an Albright Knot to tie the braid to the mono, then fill the spool with braid. Most reels suggest filling the spool to within 1/8" of the lip. I wouldn't put that much on, personally. I usually have to much line on the spool, and have to trim some off.
In years past, I've always used a swivel at the end of the braid, then tied some mono on for a leader. Both knots were Improved Clinch knots.
I've recently started to really pay attention to what Tony says. I've started leaving the swivel out altogether, and using an Albright knot, tying on a leader of Flouro, about 5' long, then whatever lure.
You will notice, especially with the 10# PowerPro, that it tends to "hang" in the air on long casts. I actually notice this on all of my rigs, up to my catfish rigs with 40# test braid.
You'll probably notice a little increased distance, due to the smaller line diameter.
One of these days, I'm going to work up the nerve to respool my UL rig with 6# test braid. That stuff is smaller than human hair!
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