Thinking I have been using Powerpro 30#.
I'm going back to 30#. Last year I had 20# spooled up and had more breakoffs than ever.
I'm sure you are aware you have to watch braided for abrasions and also your break-offs may be due to which knot you tie. Best for braided to hook or swivel is the Palomar knot; best for braided to fluoro- leader is the double uni or FG knot according to my experience though I'm sure there are others or variations.