Without attempting to sound "snippy" - that's the nice thing about furled leaders - you can try just about anything.

For example - I fish a 5' furled leader on a 3wt and tie on 2 feet of 4x and fish a streamer. I can then cut that off and tie on 5' of 6x or 7x and fish a midge....or I can then cut that off and tie on 2' of 5x to a hopper and then tie on 2' of 7x to the hopper and fish a midge dropper - all with the same furled leader. I don't step down unless I fish a dry/dropper. I usually just loop-to-loop the tippet size I want straight to the furled leader and fish it. Works great for me and no one has ever tapped me on the shoulder and said "Son you're doin' it wrong"....