There are so many leader brands out there now that it is a wonder a fly fisherman knows which one to use. I personally like to use a 5X –9 ½ ft. when I am on the streams fishing for trout. When I am on the lake fishing for the gills and Kentucky Spots I like a 6X—7 ½ ft. but on crystal clear Smith Lake I like the longer leader with the 9 ½ ft. length. I usually like to use a tippet when my leader length has wasted a couple of feet. I have learned that I can make a leader last for numbers of trips if I keep a check on the length and know when to add tippet, to achieve the desire length. Leaders can be quite expensive and when one is on fix income you need to watch every penny that is spent. One of my buddies finishes off leaders faster than the wind changing directions. I am curious as to what type of leader do you guys used, and when is time to add the tippet? Do you enterchange tippet and leader sizes? Why would it be necessary to consider mismatching leader and tippet size? What is your take on some of the questions I have put out there today?