Line twist... Primarily from spinning reels.

Close bail by hand.
Lift rod to take up slack before retrieving.
Use a swivel for spoons and inline spinners.
Set drag appropriately.
Stop wending when drag is spinning.
Learn to back wind to reduce twist from drag slip.
Rig baits carefully to prevent spiraling during retrieve.

To remove line twist.

1.
Tie a good ball bearing swivel to a post or other fixed object. Hook end of
line to swivel. Back up with rod a hundred feet or so. Bring line tight
and pull gently but firmly

2.
Trail a hundred feet of line with nothing tied on the end behind your boat
when moving.

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