And if my memory of what the venerable Father says of the Son, he's a crackerjack at his craft.
IMO the large Grocery type flies do the job, tied 6/0 or bigger, at least 8". Shark have been known to be a bit indiscriminate and take all manner from green/pink/white deceiver style to "hey, are you awake???" tarpon and squid colors. Last time I hooked one it took a 13# piece of six-way beef on a .250 dia. welded treble, trolled about the fourth swell back of a military vessel in the North Atlantic
(pissed off a Chief Cook until the Skipper heard about it and demanded the crew be fed fresh seafood