For yellowtail....I suggest you scan BWE pick out the best fisherman and secretly follow them around....try not to get too close, you might give yourself away. When somebody looks like their hooked up...that's your time to move in and Poach the spot!!!
As far as bait goes, find greg...there is a continuous bait school swimming underneath his kayak at all times. How close do you get? Make sure you can at least read his fishfinder....
Keep trying you'll get one...