I've run the Tigershark on Clearwater beach in Florida and although it will run ok with sensitivity reduced, it still falses a fair bit and of course you give up depth reducing the sensitivity. The salt disc setting on it is misleading, it is a poor machine for salt water in my opinion although excellent for fresh water. On the west coast beaches in B.C. it was barely usable due to black sand. I've since switched to a Detectorpro Diver and found it runs very well in salt and handles mineralization without a problem at all. I've run mine on the west coast, and in Costa Rica with no loss of depth or falsing. It gets fair depth for a VLF machine although of course the Excalibur or Sovereigns will outdo it by several inches.
Just my two cents worth, but you might want to consider a Detectorpro Diver or Wader model if you don't want to go with a PI machine and want a waterproof machine. Personally if I were only going to hunt Florida beaches I'd go with a PI. Those beaches are heavily detected and the extra depth will be a great help, plus there is little iron trash left from what I saw. If I were just going to hunt to ankle deep and didn't want to use a PI then I'd use a Sovereign with a 10" coil. (the WOT coil would be even better but I didn't care for that large a coil in the water, even shallow water).
