what size lure?

[Bergen Angler]

I am mostly a fresh water fisherman and want to expand my "horizon". Just bought a Trevala 6'6" MH & Avet Magnetic 5.3. If I want to use artificial lures to catch striper, what size (weight) lures should I use for Kastmaster, Kroc or Tsunami Swim bait (plan to fish at the NY Harbor near the Governor's Island)?

and what's the best rigging set up?

Thank you so much.

P.S. 2 weeks ago, I tried 3 oz bucktail and didn't even got a bite (current was so strong that I couldn't keep the bottom so I attached another 5 oz sinker on 3 way rig). I also tried 3 way rig with 8 oz sinker with bunker. Yes, I got skunked fishing from 7pm till 1 AM from a boat near the Governor's island.