AS it has been pointed out, braid is very thin so I use 50-65. Especially if you are going to be around lily pads or other heavy vegetation. You will break 30 eventually and it won't be on a small fish. It will be on the BIG one and you will be on here telling the story of how you got your butt handed to you because a giant wrapped you around a lily pad and you couldn't get her out.
The only thing I use 20 & 30 braid on is my spinning reels. Doesn't make sense to risk it IMO.