30's will work fine for most swords as long as you have braid backing. We use 65 and 80 pound backing and put a 100 yard top shot of 80. Doing this you can easily put 750 plus yards of 80 pound on a 30. I like big game hollow core cause of its diameter, I have 850 yards of it as backing on my Tiagra 30W's and still have room toget 100 yards of 80 pound for my top shot and a 200 pound wind on leader.