Take 10 white rag put them in some cold water. leave them for all to see all day then take them home.
fish with your regular baits, take them home and repeat. when you win a comp half the country will drive around the country looking for the 10 whites in your fridge.
There is no super bait. research your venue, perfect your traces, perfect your techniques. ask yourself questions like
1. are really sure you can fish 2 flounder bait at 100 yards as you do at 10yards
2. can you read a perfectly flat beach.
3. can you read waves and what do they tell you.
these are just examples. perfect the bait and techniquies you have them look for the edge that might work once a year.
sorry a little off topic