MrBill, When I brought a 250 lbs yft to the gaff range on the Q105 two years ago, I used Saltiga 50 with 23 - 24 lbs drag. But unfortunately the handle of the Satiga got frozen and I cut the line of the reel and connected to the line of another reel, Avet 4/0 2 by using uni-to-uni knot while I asked the mate to hold my rod and continued to fight. I think the whole fighting time was about 1 1/2 - 2 hours. But I thought I could shorten the fighting time tremendously if I could apply more drag as I couldn't gain any line for long when the tuna made circles under the boat with only 25 lbs drag. One of the reason I bought Accurate 665 two-speed is to use the reel for cow as I can use over 30 lbs drag at full. I hope the reel can survive the heavy pressure of cow's pulling.
Not many guys can fight 35 lbs drag for long and I know it is too tough for me to fight with 35 lbs drag.
Tom,
Thanks for your kind words, but I am not that good.

Normally very few bait fishermen with 50 can land a tuna shorter than I do as I use pretty heavy drag and tuna seems don't fight when caught on jigs as much as when caught on bait. With proper drag I am pretty confident I can land even a cow within reasonable time though I use small 3/0 or 4/0 size reels.