Yea and a move to the West Coast / California forum might get a few answers.
Knowing your conditions and tackle requirements takes a bit of studying -Learning structure and how moving water relates to it will help a great deal. Put your time in to gain experience. Don't give up.
if using a sliding sinker with 30 pound braid what size leader should i use and what material should it be braid same as mainline, fluorocarbon or mono? and do i use stronger or weaker line as the leader?
Your leader will be used for stealth and abrasion resistance. Braid to mono or fluorocarbon. Strength depends on the structure. 30 to 50 pound flouro or mono is a good bet when shore fishing or surf-casting most places with 30 pound braid. 20 to 30 inch leader will help you get used to casting the bait without helicoptering. If that aqueduct moves like the cape cod canal read some threads in the Massachusetts forum and the approach the guys use to fast ripping currents.