I have never grown it myself but Mr. Nice is a great breeder. Shark Shock is the original Great White Shark but the name was changed to not confuse the 2 or some shit like that. Grow it and I am sure you will be happy.
yeah mr nice is probably the only few left breeders that i can really assure there legitimacy...since he was the one who created a few legendary strains like shark shock aka great white shark, la nina aka el nino, medicine man aka el nino and of course the black widow aka white widow.
You can't go wrong with Shantibaba's work....What ever strain you chose will be a winner I have been running his gear for over three years never a disappointment..