I was just introduced the "Castwell Knot" by WarrenP and though sceptical I agreed to let him force it upon me! (As I was his house guest I had no choice as I had no desire to "sleep in the 'shed' if I did not try it!!) Furled leader of 4lb.Berkley "Vanish Transition" and 5 foot of 4X Flourocarbon tippet. An afternoon of breaking off several flys on the rocks and catching 5 trout has made me a believer, I now kneel before the great Poo Pah and ask forgiveness for my heathen ways. Thus enlightened I will carry his message throughout the land and make it known to all.