Re: Damaged Fly Line?
If I may add something to what Bear has mentioned, If you do remove the 'Loop' and add the 'Butt Section' of 30# mono, you should seal the freshly cut end of the fly line with a tiny drop of Super Glue to keep the line from wicking water and therefor sinking.
Looks like Riptide posted the same info a fraction quicker than I. lol
"I've never missed a Steelhead by waiting too long. It's true, but I've missed plenty trying to set the hook too quickly." Dec Hogan 'A Passion For Steelhead'