FWIW, I recently spooled up a Torque 300. I went with the 300 for two reasons. First was added line capacity and the 2nd was the lugs on the frame which allow you to strap in a harness.
Anyway, the 300 held about 200 yards of 65lb Sufix braid, with another 330 yards of 80lb Daiwa Metered Boat Braid on top of that. There is plenty of room for a 25' 80lb mono topshot. ( via the loop to loop ( I used a Bimini twist in the solid braid))
With well over 500yards of line, I feel pretty confident I can handle some big Tuna.