All my line twists problems disappeared after switching to 15 lb braid
(same diameter as 4 lb).
That's on a spinning reel. After changing 6 - 8 lb mono every month or so fishing 3 - 4 times a week in SW earlier this year for 1 - 3 hours after work.
Switched to 15 lb Spiderwire $20. Same line 6 months now.
Casts farther too. Love it now. Saves money and time. Less lost lures on rocks also.
DR