I'm sure what I do is wrong but it works for me. I have a loop to loop connection from fly line to a 4ft piece of 25lb mono to a tippet ring then finished off with a piece of 4ft 12lb mono. Turns over the flies fine and hasn't stopped the bluegill, bass, catfish and gar I've been going after the last couple years. I just don't think they are as leader shy as other fish. Plus when you have to be careful on spending money as I have to be on fishing stuff. A large spool of mono doesn't break the bank and last forever.