I would add a floro top shot to your braid using this
https://www.youtube.com/watch?v=aXjagwdjAhg
Make it long enough so if you get hung up and need to re tie you have the left over floro there to tie your sinkers and pre snelled hooks to... This makes it faster and easier to re tie.
As far a sinker, you flat ones like this or this since they don't roll as much as a bank sinker.
https://www.google.com/search?q=flat...W97VRrFC4bKeM:
https://www.google.com/search?q=flat...D7t4WSz1xz3cM: