My opinion... any knot other than a perfection loop is just a pain in the ***. I use thous Cortland loop thing'ys and a perfection loop on all my leaders, 8wt. 5wt. & 3wt. lines, never had a problem with them snagging anything they (no pun intended) cast well, and I lov'em with my 8wt. and sink tip add-ons for Steelhead fishing. I also tie my own leaders using the blood knot & they don't snag or pickup anything either. Not to mention it takes but a second to change from one leader type and your fishing a whole new system.