I find the heavy tungsten lines do sink well. Tungsten is a lot denser than lead so it can handle some plastic coating slowing it down. http://www.danblanton.com/billnash/lwt.htm has a lot on useful info. If you want to stay in a hot spot then anchoring is almost always the best bet. Slack tide does seem to be better, I think the bottomfish are willing to move further when they don't have to fight as much current. If you use a drift sock when the wind is up your boat speed should be very close to the current speed and the effect of the wind is much reduced. It's definitely easier to fish a slack current, but if you don't have the luxury of fishing the wind / tide and have to fish the conditions present at the time when you can fish, IMHO a drift sock keeps you in the game longer when the wind / tide are trying to push the boat around. I don't think dogfish teeth quite necessitate wire. 40lb fluoro will probably be good enough and a lot easier to work with. Scent might put you on probation from a FF board. Orange is definitely the go to fly color for sharks in FL but those sharks are usually fired up on some kind of chum slick too. I happened to catch this quote from Barry Thornton over at http://www.bcadventure.com/adventure/angling/protalk/thornton/saltwaterff10.phtml "I have been fortunate (?) to have hooked thousands of dogfish while drift fishing and have even targeted these fish with my flies with much success on a slooowww retrieve"