Andy, now I am no expert, but braid and fluro tied together sounds a "harsh" combination. It depeneds on your rod as well, but if you really want to try the two together I would have thought you need something in the set up that gives a bit of stretch, like a couple of feet of powergum link, otherwise you may risk bumping fish off. I would just use swivels, but I am sure someone like Rik, Barney et al would have a more enlightend view.