I use a lot of 6x, 6.5x and 7x tippet when fishing. I have been using the Orvis knot for about 7 years. No problems with it at all. I saw a video of the Davy knot and it looks like it would be easier to tie and also looks like it would have a smaller knot. Does anyone here fish the Davy knot? What are your thoughts/opinions?