Anyone here use this either for 1) nail knotting 7" to standard fly line to create a permanent loop in the line 2) making a leader and attaching standard mono tippet (I saw a post on another ff forum someone stating use 3 feet #20, 2 feet #15 pound - add tippet) as a nymph leader combo - and credited that formula to Davy ??? Also...I take it that a leader constructed from this material would not be conducive to dry fly fishing as the amnesia material would be more apt to sink?