[Ryan Dezwarte]

Looks good but i would definetely use Single hooks with a longer shank.

I primarily do top water tuna but here is a jigging setup i use for tuna.
I now tie my assist hooks to a solid ring then to a split ring instead of straight onto the jig.
The longer assist cord is zylon to prevent break off when a tuna swallows the jig

 

[Ryan Dezwarte]

Hey man, the new setup looks wayyyyy better. You wont have hook interference with single hooks which will lead to a higher hookup ratio IMO. Plus, i would rather have a 6/0 single hook vs. 2 4/0's.
The longer assist cord will benefit by keeping the jig/leader out of the tuna's mouth. Good luck. and set the hook strong!!! they have tough mouths.

 

[Ryan Dezwarte]

Use Ultra Wire split rings from OWNER. They have rings capable of retaining shape past 200lb + force. Youll snap your braid before the wire straigtens.

 

[Ryan Dezwarte]

Ultra wire is thicker. Youll need split ring pliers which can handle thicker em.