For most Topwater Tuna applications you'll need a 7ft 50# class rod 20-25# of drag and 400yds of 65# braid
to assure you don't get spooled if a big YFT hits and can boat the normal schooler sized fish quickly.
Most of our fishing is done on private charters with 15 to 40 folks fishing and we need to control our
fish to avoid tangles.
Also when you drift the floaters everyone on the boat has to wait untill the last fish is landed before the
boat can go back to the rig for another drift.
Light tackle is a pain for everyone else waiting to fish in that situation.
Remember 100# plus YFT also travel in schools.. I have had some YFT on that exceeded 150#+ (est)
I never slowed down until they went over 1300ft straight down and pulled the hooks!
That's why most folks use a spinner rated for 300yds of 30# Mono... you can load up to 500yds
of 65# braid for running room.
With that in mind you need a VS 275 or 300 to get the line capacity to handle a large YFT.
You could load the 200 up with 80# braid and Jig fish with 30# of drag on a 400-600 gram class jig rod and be fairly safe if a large fish hits.
If you are fishing from a private boat where you don't have a lot of lines in the water to tangle and can
maneuver the boat to gain an advantage on larger fish or just want a longer fight the 50# braid at 16# of drag will do.