Are You Replacing Your Fly-Line Often Enough? 

The big backing loop goes over the line factory spool. The idea is to form a handshake loop to loop and avoid the biting of the collapsed loop you formed with your solution. Helps preserving the welded loop on the line. You can still do a hand shake with your but it takes a bit of adjustment. Now you lost me with the flat spinning factory spool on the table. Ideally you want that spool to be rotating on an axis. The line comes out of the spool and get on the reel spooled the "natural" way it came out of the factory spool. That will avoid line twists and fighting the line's way of sitting on the factory spool. You can surely stretch the line but stretching will not change a thin to a twisted line.

There is so much wrong in ths video that it's hard to know where to start. Provided that you care for your lines and don't regularly scuff them up by walking on them or getting them snagged between rocks or coral, lines can EASILY last for several years. This is my personal experience AND that of many anglers that I fish with. Anyone who recommends replacing lines once per year is plainly trying to sell fly lines.

mucilin

What a BS video. I've had trout lines last near 20 years . But you must care for them and clean them regularly using a fly line cleaner that re-nourishes the plasticizer. I routinely clean mine putting my gear away after use. You and also buy the wrong brand of line line that is too stiff forcing you to stretch them to straighten them every time you fish too. Stretching to straighten a line causes cracked finishes too. Stiff lines that need straightening crack much sooner than subtle lines. People also abuse their lines by burning the finish stripping line down over the line guard on the reel at an acute angle instead of stripping line off the spool without stressing it over the line guard by pulling the line toward the rod tip. Some anglers are fool enough to clean a fly line with detergents like dishwashing liquid that dissolves and sucks the plasticizer out of a line causing premature stiffening and surface brittleness. Detergent cleaning abuse accelerates aging and causes premature cracking. One should NEVER use a detergent, or solvent, to clean a fly line. You might put cracks in your line in a few weeks if you combine some or all of the above abusive behaviors. But modern fly lines should easily last much longer than one season. The fact that you can turn around a DT and have the other end perfect is absolute proof you're mistreating your fly line as the other end is the same line, same age. Anyway, Thumbs Down! If you let things grow on your fly line for a year and then just replace it, well, that's not a helpful information video. Do better. Best, Bill