Pappy, it’ll be 4# braid with a long heavier leader. I’ll also alternate with 10# as well.
This has to do with our fishing clubs tackle categories restrictions more than anything.
We have ultralight (4#) and spin (10#) tackle classes that are artificial lures only.

As for using 4#, I’ve caught bass over 8lbs and saltwater fish over 30# on it.

As for where/what I’ll be fishing, being on the St. John’s river, we pitch to openings in the pads and lay downs along the banks. Not so much brush piles like you would fish on lakes.