Re: Fly fishing for spot, Kingfish in MD
Alatos- welcome to the board.
I haven't fly fished for them and don't know anyone that has, so this is just a guess at best, so take this with a grain of salt... but you might try some small shrimp imitations and small stuff used for bonefish like mini puffs and gotchas. You might also look into some of the "mole crab" patterns they use in California for surf perch.
Where abouts are you? Folks might have some suggestions for some other stuff that's a bit easier to target and generally more willing to whack flies. .