I prefer a loop to loop connection for my fly line to leader. Most lines have a weight forward taper, particularly the lines that come on the combos. It makes it very easy to change leaders and in the end will keep more of the head, or front part of your fly line intact longer. On my fly line I cut the very tip of the line at a slight taper, turn it over onto the line to form about a half inch loop, tie that down with some nylon thread and coat it with fleximent or softex. I buy the cheaper leaders without a loop already tied on the thick end and just tie a perfection loop on it. You can find videos on youtube for both of these. If you have any trouble let me know and I'll find some and post links. Or you could go up to Forward Cast in St. Mathews or over to the fly shop at Bass Pro in Clarksville. There are good guys there that would be more than happy to help you out. Maybe check out Derby City Fly Fishers, they are always doing casting clinics and tying clinics.